Liquid injection molding apparatus
    2.
    发明授权
    Liquid injection molding apparatus 失效
    液体注射成型设备

    公开(公告)号:US3853446A

    公开(公告)日:1974-12-10

    申请号:US35207673

    申请日:1973-04-17

    发明人: HOSTETTLER F GRAEFE P

    IPC分类号: B29D35/00 B29C29/00 B29F1/00

    CPC分类号: B29D35/0018

    摘要: In an apparatus for the liquid injection molding of multicomponent thermosetting reaction mixtures having holding tanks for storing each component of the reaction mixture under vacuum, recirculating and metering pumps for recirculating each component to its respective holding vessel between injection cycles and alternately delivering metered amounts of each component to a mixing and injecting unit during the injection cycle and a mold having an internal configuration or cavity conforming to the surfaces of the article to be molded, a movable bottom plate and an injection port and short injection channel terminating in a gate positioned within the mold cavity at a point relatively remote from the geometric center or point of balance of the bottom plate for molding the reaction mixture to the desired configuration, an improvement is disclosed which comprises: A. MEANS FOR CONTINUOUSLY RECIRCULATING ONE PART OF EACH REACTION COMPONENT TO ITS RESPECTIVE HOLDING TANK WHILE SIMULTANEOUSLY DELIVERING THE OTHER PART OF THE REACTION COMPONENT TO A METERING, MIXING, AND INJECTING UNIT FOR INJECTING A PREDETERMINED AMOUNT OF HOMOGENEOUS REACTION MIXTURE INTO THE INJECTION PORT OF A MOLD UNDER SUBSTANTIALLY CONSTANT PRESSURE ONLY FOR THE DURATION OF THE INJECTION CYCLE; B. MEANS FOR PERMITTING DISCHARGE OF THE REACTION MIXTURE FROM THE METERING, MIXING, AND INJECTING UNIT INTO THE INJECTION PORT OF THE MOLD ONLY FOR THE DURATION OF THE INJECTION CYCLE; C. MEANS FOR MAINTAINING SUBSTANTIALLY CONSTANT PRESSURE FOR THAT PART OF THE REACTION COMPONENT BEING RECIRCULATED TO ITS RESPECTIVE HOLDING TANK REGARDLESS OF THE STATE OF OPERATION OF MEANS (B); AND D. AT LEAST ONE INJECTION CHANNEL EXTENDING FROM THE INJECTION PORT OF THE MOLD AND TERMINATING IN AT LEAST ONE GATE POSITIONED WITHIN THE MOLD CAVITY AT A POINT RELATIVELY PROXIMATE TO THE GEOMETRIC CENTER OR POINT OF BALANCE OF THE BOTTOM PLATE, THE INJECTION CHANNEL BEING DEFINED WITHIN THE WALL OF THE MOLD CAVITY AT A LEVEL BELOW THE UPPER SURFACE OF THE BOTTOM PLATE WHEN THE BOTTOM PLATE IS IN THE POSITION FOR THE COMMENCEMENT OF THE INJECTION CYCLE WITH THE BOTTOM PLATE WALL SERVING AS ONE WALL OF THE INJECTION CHANNEL, OR THE INJECTION CHANNEL IS DEFINED WITHIN THE BOTTOM PLATE WALL WITH THE WALL OF THE MOLD CAVITY SERVING AS ONE WALL OF THE INJECTION CHANNEL, OR THE INJECTION CHANNEL IS DEFINED WITHIN THE WALL OF THE MOLD CAVITY ANDA THE BOTTOM PLATE WALL IN THE AFORESAID MANNER WITH THE FLOW OF REACTION MIXTURE THROUGH THE GATE DURING THE INJECTION CYCLE BEING UNINTERRUPTED WHEN THE BOTTOM PLATE IS IN POSITION FOR THE COMMENCEMENT OF THE INJECTION CYCLE AND INTERRUPTED WHEN THE BOTTOM PLATE IS IN THE POSITION AT THE CONCLUSION OF THE INJECTION CYCLE.

    摘要翻译: 在用于液体注射成型多组分热固性反应混合物的设备中,其具有用于将反应混合物的每个组分在真空下储存的储存罐,循环和计量泵,用于在注射循环之间将每个组分再循环到其各自的保持容器,并交替地递送计量 的每个部件在注射循环期间到混合和注射单元;以及模具,其具有与待模制制品的表面相符的内部构造或空腔,可移动的底板和注射口以及终止于位于门的短注射通道 在模具腔内的相对远离底板的几何中心或平衡点的点处,用于将反应混合物模制成所需的构造,公开了一种改进,其包括:

    Polyurethanes chain-extended with a hydroxyl containing amide chain extender
    3.
    发明授权
    Polyurethanes chain-extended with a hydroxyl containing amide chain extender 失效
    含氨基链延伸剂的羟基链延长

    公开(公告)号:US3663511A

    公开(公告)日:1972-05-16

    申请号:US3663511D

    申请日:1970-06-10

    IPC分类号: C08G18/10 C08G22/08

    CPC分类号: C08G18/10 C08G18/3825

    摘要: THERE IS DISCLOSED A PROCESS FOR THE MANUFACTURE OF NOVEL CHAIN EXTENDERS OR MIXTURES THEREOF FOR USE IN PREPARING POLYURETHANES COMPRISING REACTION OF AN ALIPHATIC, CYCLOALIPHATIC, HETEROCYCLIC, OR AROMATIC DIAMINE OR AMINO ALCOHOL, WITH FROM ABOUT 1.0 TO ABOUT 1.5 MOLES OF AN EPSILON-CAPROLACTONE OR A 6-HYDROXYCAPROIC ACID PER MOLE OF ACTIVE AMINE FUNCTIONAL GROUP OF SAID DIAMINE OR AMINO ALCOHOL, AT A TEMPERATURE OF FROM 100 TO 300*C., IN THE PRESENCE OR ABSENCE OF A METALLIC CATALYST. THERE IS FURTHER DISCLOSED A PROCESS FOR THE MANUFACTURE OF POLYURETHANE POLYMERS WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF (A) POLYESTERS PREPARED FROM DICARBOXYLIC ACIDS AND GLYCOLS, (B) POLYESTERS PREPARED FROM EPSILON-CAPROLACTONES OR 6-HYDROXYCAPROIC ACIDS, OR (C) POLYETHERS PREPARED FROM 1,2-ALKYLENE OXIDES AND/OR TETRAHYDROFURAN, WITH ORGANIC POLYIDOCYNATES AND A CHAIN EXTENDER PREPARED AS DESCRIBED ABOVE.

    Process for preparing hydrolyzates of acyloxycaproic acid and alklyhydroxycaproate and polyurethanes made therefrom
    4.
    发明授权
    Process for preparing hydrolyzates of acyloxycaproic acid and alklyhydroxycaproate and polyurethanes made therefrom 失效
    制备丙二酸和羟基羧酸的水解产物的方法及其制备的聚氨酯

    公开(公告)号:US3658761A

    公开(公告)日:1972-04-25

    申请号:US3658761D

    申请日:1970-04-13

    CPC分类号: C08G63/06 C08G18/4283

    摘要: THERE IS DISCLOSED A PROCESS FOR THE PRODUCTION OF POLYURETHANES FROM 6-ACYLOXYCAPROCIC ACIDS AND ALKYL 6-HYDROXYCAPROATES, COMPRISING CONVERTIN THE 6-ACYLOXYCAPROIC ACIDS- OR ALKYL 6-HYDROXYCAPROATES BY HYDROLYSIS TO MIXUTRES OF THE CORRESPONDING 6-HYDROXYCAPROIC ACIDS AND OLIGOMERS THEREOF, THE HYDROLYSIS REACTIONS BEING CONDUCTED IN THE PRESENCE OF WATER, AND PREFERABLY IN THE PRESENCE OF A HYDROGEN ION CONTAINING CATALYST THAT IS READILY REMOVABLE FROM THE HYDROLYSTAE; REMOVING THE ACYLOXY ACIDS OR ALKANOLS, FOR EXAMLE, FORMIC ACID OR METHANOL, WHICH ARE FORMED DURING THE HYDROLYSIS REACTION, CONVERTING THE ACID HYDROLYSATE TO A POLYESTER POOLYOL BY REACTION WITH AN ORGANIC POLYFUNCTIONAL AGENT AND THEREAFTER CONVERTING THE POLYESTER POLYOL TO A POLYURETHANE.

    Polyurethane foams based on liquid poly(e-caprolactone)polyester polyols
    5.
    发明授权
    Polyurethane foams based on liquid poly(e-caprolactone)polyester polyols 失效
    基于液体聚(聚碳酸酯)聚酯多元醇的聚氨酯泡沫

    公开(公告)号:US3806473A

    公开(公告)日:1974-04-23

    申请号:US16749671

    申请日:1971-07-29

    摘要: FLEXIBLE POLYESTER-URETHANE FOAMS HAVING EXCELLENT HUMID AGING PROPERTIES, ABILITY TO BE FLAME-LAMINATED AND TO WITHSTAND DRY-CLEANING SOLVENT, PREPARED BY REACTING LIQUID POLYESTERS CONTAINING ABOUT 10 PERCENT TO 72 PERCENT BY WEIGHT OF THE EPSILON-OXYCAPROYL UNIT

    -O-(CH2)5-CO-

    WITH AN ORGANIC POLYISOCYANATE, WATER AND OPTIONALLY, OTHER BLOWING AGENTS A CATALYST AND A SURFACTANT, AND PROCESSES FOR THEIR PREPARTION. LIQUID POLYESTERS HAVING HYDROXYL EQUIVALENT OF FROM ABOUT 800 TO ABOUT 1400, BY REACTION OF ABOUT 10 TO 73 PERCENT BY WEIGHT OF EPSILON-CAPROLACTONE, OR ALTERANATIVELY ABOUT 12 TO 80 PERCENT BY WEIGHT OF A MIXTURE OF 6-HYDROXYCAPROIC ACID AND ITS LOWER OLIGOMERS, WITH FROM ABOUT 90 TO ABOUT 28 PERCENT BY WEIGHT OF A MIXTURE COMPRISING REACTED SEGMENTS OF AN ORGANIC DICARBOXYLIC ACID, AN ALKYLENE GLYCOL AND A TRIOL SUCH AS TRIMETHYLOPROPANE, AND PROCESSES FOR THEIR PREPRARATION.

    Equilibrated polyesters and polyurethanes based thereon
    6.
    发明授权
    Equilibrated polyesters and polyurethanes based thereon 失效
    均匀的聚酯和基于其的聚氨酯

    公开(公告)号:US3666724A

    公开(公告)日:1972-05-30

    申请号:US3666724D

    申请日:1970-08-13

    发明人: HOSTETTLER FRITZ

    摘要: Copolyesterpolyols comprising the equilibration product of at least two polyols manufactured by heating at least two high molecular weight polyols, at least one of which is a polyester polyol, to a temperature of 150* to about 300* C., preferably in the presence of a polyesterification and/or ester interchange catalyst, for a sufficient period of time to produce new copolyesterpolyols which have substantially constant melting points. Such copolyesterpolyols have approximately the melting point as the combination of the ingredients synthesized by a normal copolyesterification technique. Also provided are polyurethane products derived from the copolyesterpolyols comprising solid urethane elastomers, microcellular elastomers, flexible and rigid polyurethane foams, injection-molding resins, prepolymers and the like, prepared by reaction of the copolyesterpolyols with an organic polyisocyante and a chain extender.

    摘要翻译: 共聚酯多元醇包括通过将至少两种高分子量多元醇(其中至少一种是聚酯多元醇)加热至150℃至约300℃的温度制备的至少两种多元醇的平衡产物,优选在 聚酯化和/或酯交换催化剂,足够的时间来生产具有基本上恒定的熔点的新的共聚酯多元醇。 这种共聚酯多元醇具有作为通过正常共聚酯化技术合成的成分的组合的近似熔点。 还提供了衍生自共聚酯多元醇的聚氨酯产品,其包括通过共聚酯多元醇与有机聚异氰酸酯和扩链剂反应制备的固体聚氨酯弹性体,微孔弹性体,柔性和刚性聚氨酯泡沫,注塑树脂,预聚物等。

    Cartridge for storing, mixing and dispensing a plurality of ingredients
    8.
    发明授权
    Cartridge for storing, mixing and dispensing a plurality of ingredients 失效
    储存,混合和分配多种成分的墨盒

    公开(公告)号:US3794221A

    公开(公告)日:1974-02-26

    申请号:US3794221D

    申请日:1971-12-06

    发明人: HOSTETTLER F HERZOG H

    摘要: A cartridge for storing separately a plurality of ingredients, at least one of them in a separate frangible envelope within the cartridge, and then for mixing the ingredients and expelling the mixture, includes a cylindrical container apertured at each end, a piston, a piston rod slidably passing through one end of the container and through the piston and having a substantially fluid tight seal with the piston and with the side walls of the container, a mixing element affixed to the rod on the side of the piston remote from that one end of the container, and means to couple the piston to the piston rod to permit drive of the piston lengthwise of the container by the piston rod after rupture of the envelope and mixture of the ingredients by the mixing element.

    摘要翻译: 用于分别存储多个成分的盒,其中至少一个在盒内的单独的易碎信封中,然后混合成分并排出混合物,包括在每端开有圆柱形容器,活塞,活塞杆 可滑动地穿过容器的一端并穿过活塞并且具有与活塞和容器侧壁基本上流体密封的密封件,固定在活塞侧的杆上的混合元件远离该容器的一端 容器以及将活塞连接到活塞杆的装置,以允许活塞杆在容器的破裂之后通过混合元件在成分的混合之后驱动活塞的长度方向。

    Liquid injection molding apparatus
    9.
    发明授权
    Liquid injection molding apparatus 失效
    液体注塑设备

    公开(公告)号:US3897939A

    公开(公告)日:1975-08-05

    申请号:US49608674

    申请日:1974-08-09

    IPC分类号: B29D35/00 B29B1/06

    CPC分类号: B29D35/0018

    摘要: In an apparatus for the liquid injection molding of multicomponent thermosetting reaction mixtures having holding tanks for storing each component of the reaction mixture under vacuum, recirculating and metering pumps for recirculating each component to its respective holding vessel between injection cycles and alternately delivering metered amounts of each component to a mixing and injecting unit during the injection cycle and a mold having an internal configuration or cavity conforming to the surfaces of the article to be molded, a movable bottom plate and an injection port and short injection channel terminating in a gate positioned within the mold cavity at a point relatively remote from the geometric center or point of balance of the bottom plate for molding the reaction mixture to the desired configuration, an improvement is disclosed which comprises: A. MEANS FOR CONTINUOUSLY RECIRCULATING ONE PART OF EACH REACTION COMPONENT TO ITS RESPECTIVE HOLDING TANK WHILE SIMULTANEOUSLY DELIVERING THE OTHER PART OF THE REACTION COMPONENT TO A METERING, MIXING, AND INJECTING UNIT FOR INJECTING A PREDETERMINED AMOUNT OF HOMOGENEOUS REACTION MIXTURE INTO THE INJECTION PORT OF A MOLD UNDER SUBSTANTIALLY CONSTANT PRESSURE ONLY FOR THE DURATION OF THE INJECTION CYCLE; B. MEANS FOR PERMITTING DISCHARGE OF THE REACTION MIXTURE FROM THE METERING, MIXING, AND INJECTING UNIT INTO THE INJECTION PORT OF THE MOLD ONLY FOR THE DURATION OF THE INJECTION CYCLE; C. MEANS FOR MAINTAINING SUBSTANTIALLY CONSTANT PRESSURE FOR THAT PART OF THE REACTION COMPONENT BEING RECIRCULATED TO ITS RESPECTIVE HOLDING TANK REGARDLESS OF THE STATE OF OPERATION OF MEANS (B); AND D. AT LEAST ONE INJECTION CHANNEL EXTENDING FROM THE INJECTION PORT OF THE MOLD AND TERMINATING IN AT LEAST ONE GATE POSITIONED WITHIN THE MOLD CAVITY AT A POINT RELATIVELY PROXIMATE TO THE GEOMETRIC CENTER OR POINT OF BALANCE OF THE BOTTOM PLATE, THE INJECTION CHANNEL BEING DEFINED WITHIN THE WALL OF THE MOLD CAVITY AT A LEVEL BELOW THE UPPER SURFACE OF THE BOTTOM PLATE WHEN THE BOTTOM PLATE IS IN THE POSITION FOR THE COMMENCEMENT OF THE INJECTION CYCLE WITH THE BOTTOM PLATE WALL SERVING AS ONE WALL OF THE INJECTION CHANNEL, OR THE INJECTION CHANNEL IS DEFINED WITHIN THE BOTTOM PLATE WALL WITH THE WALL OF THE MOLD CAVITY SERVING AS ONE WALL OF THE INJECTION CHANNEL, OR THE INJECTION CHANNEL IS DEFINED WITHIN THE WALL OF THE MOLD CAVITY AND THE BOTTOM PLATE WALL IN THE AFORESAID MANNER WITH THE FLOW OF REACTION MIXTURE THROUGH THE GATE DURING THE INJECTION CYCLE BEING UNINTERRUPTED WHEN THE BOTTOM PLATE IS IN POSITION FOR THE COMMENCEMENT OF THE INJECTION CYCLE AND INTERRUPTED WHEN THE BOTTOM PLATE IS IN THE POSITION AT THE CONCLUSION OF THE INJECTION CYCLE.

    摘要翻译: 在用于液体注射成型多组分热固性反应混合物的设备中,其具有用于将反应混合物的每个组分在真空下储存的储存罐,循环和计量泵,用于在注射循环之间将每个组分再循环到其各自的保持容器,并交替地递送计量 的每个部件在注射循环期间到混合和注射单元;以及模具,其具有与待模制制品的表面相符的内部构造或空腔,可移动的底板和注射口以及终止于位于门的短注射通道 在模具腔内的相对远离底板的几何中心或平衡点的点处,用于将反应混合物模制成所需的构造,公开了一种改进,其包括:

    Polyurethane elastomers based on poly(epsilon-caprolactone)polyols
    10.
    发明授权
    Polyurethane elastomers based on poly(epsilon-caprolactone)polyols 失效
    聚氨酯弹性体(EPSILON-CAPROLACTONE)POLYOLS

    公开(公告)号:US3775354A

    公开(公告)日:1973-11-27

    申请号:US3775354D

    申请日:1972-02-29

    摘要: SOLID AND MICROCELLULAR POLYURETHANE ELASTOMERS PREPARED BY REACTING (A) LIQUID POLYESTERS CONTAINING FROM ABOUT 25 PERCENT BY WEIGHT TO ABOUT 70 PERCENT BY WEIGHT OF THE EPSILON-OXYCAPROYL UNIT, THE BALANCE OF THE POLYESTER BEING DERIVED FROM THE REACTION OF AT LEAST ONE DICARBOCYLIC ACID WITH AT LEAST TWO GLYCOLS SELECTED FROM THE GROUP CONSISTING OF ETHYULENE GLYCOL, 1,3-PROPANEDIOL, 1,4-BUTANEDIOL AND 1,5-PENTANEDIOL, (B) AN ORGANIC POLYISOCYANATE, AND OPTIONALLY (C) A CHAIN-EXTENDER COMPRISING WATER, GLYCOLS, AMINO ALCOHOLS, OR DIAMINES. IF THE LIQUID POLYESTER (A) IS BRANCHED, FOR EXAMPLE, BY ADDITION OF SMALL QUANTITIES OF A TRIOL, THE REACTION WITH THE ORGANIC POLYISOCYANATE MAY BE CONDUCTED IN THE ABSENCE OF A CHAIN-EXTENDER. PROCESSES FOR PRODUCING THESE ELASTOMERS ARE ALSO DISCLOSED. NOVEL LIQUID, SUBSTANTIALLY PRIMARY HYDROXYL-TERMINATED, LINEAR AND BRANCHED POLYESTERS CONTAINING FROM ABOUT 25 PERCENT BY WEIGHT TO AS MUCH AS ABOUT 70 PERCENT BY WEIGHT OF THE EPSILON-OCYCAPROYL UNIT

    -O-(CH2)5-CO-

    THE BALANCE OF THE POLYESTER BEING DERIVED FROM THE REACTION OF AT LEAST ONE DICARBOXYLIC ACID WITH AT LEAST TWO STRAIGHT CHAIN GLYCOLS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, 1,3-PROPANEDIOL, 1,4-BUTANEDIOL AND 1,5-PENTANEDIOL. THESE POLYESTERS HAVE A TRUE MELTING POINT NO HIGHER THAN ABOUT 30*C. ALSO PROVIDED ARE PROCESSES FOR PRODUCING THESE POLYESTERS.