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92 条记录 (耗时 0.013 秒)

    Process for making a polyvinyl alcohol gel support pad
    1.
    发明授权
    Process for making a polyvinyl alcohol gel support pad 失效
    制备聚乙烯醇醇凝胶支撑垫的方法

    公开(公告)号：US3858379A

    公开(公告)日：1975-01-07

    申请号：US27402672

    申请日：1972-07-21

    申请人： US ARMY

    发明人： GRAVES DAVID J ,  RITCHEY CHARLES R

    IPC分类号： A47C27/08 ,  A61G7/057 ,  A61G7/06 ,  C08F29/26 ,  C08F45/34

    CPC分类号： A47C27/088 ,  A47C27/085 ,  A61G7/05738 ,  Y10S5/909

    摘要： A polyvinyl alcohol gel pad. The gel pad has properties which make it useful as a support pad in the prevention and treatment of decubitus ulcers (also known as pressure sores) and for other purposes. The polyvinyl alcohol gel is made by cross-linking high molecular weight polyvinyl alcohol using a cross-linking agent, such as formaldehyde, in the presence of an acid catalyst, such as hydrochloric acid, and by incorporating at least one internal plasticizer, such as propylene glycol, in the gel. The support pad is completed by putting a thin-film envelope around the gel. The invention described herein may be manufactured and used by or for the Government for governmental purposes without the payment to me of any royalty thereon.

    摘要翻译： 聚乙烯醇凝胶垫。 凝胶垫具有使其用作预防和治疗褥疮溃疡（也称为压疮）和用于其它目的的支撑垫的性质。 聚乙烯醇凝胶通过在酸催化剂如盐酸的存在下使用交联剂如甲醛交联高分子量聚乙烯醇，并且通过引入至少一种内部增塑剂，例如 丙二醇，在凝胶中。 通过在凝胶上放置薄膜信封来完成支撑垫。

    Process for preparing a new substance that is suitable for use as a plasticizer in polymeric compounds
    2.
    发明授权
    Process for preparing a new substance that is suitable for use as a plasticizer in polymeric compounds 失效
    制备适合在聚合物中作为增塑剂使用的新物质的方法

    公开(公告)号：US3817901A

    公开(公告)日：1974-06-18

    申请号：US25289572

    申请日：1972-05-12

    申请人： STAMICARBON

    发明人： SCHAAFSMA S

    IPC分类号： C08K5/103 ,  C08F45/42 ,  C08F45/34

    CPC分类号： C08K5/103

    摘要： DIESTERS OF THE FORMULA

    R-O-CH(-CH3)-CH2-O-R''

    WHEREIN ONE OF R AND R'' IS

    -CH2-CH2-OR"

    AND THE OTHER OF R AND R'' IS R'''''', WHEREIN ONE OF R" AND R'''''' IS

    PHENYL-CO-

    AND THE OTHER OF R" IS

    PHENYL-CO- OR CNH(2N+1)-CO-

    WHEREIN N IS A NUMBER FROM 5 TO 11, AND PROCESS FOR MAKING SAME, ARE DISCLOSED. THE USE OF THESE DIESTERS AS PLASTICIZERS IN ORGANIC POLYMERS, SUCH AS ACRYLIC POLYMERS AND VINYL POLYMERS, IS ALSO DISCLOSED.

    Aliphatic liquid-peptizable chlorinated butadiene polymer blends
    3.
    发明授权
    Aliphatic liquid-peptizable chlorinated butadiene polymer blends 失效
    水性液体可溶性氯化丁二烯聚合物共混物

    公开(公告)号：US3794634A

    公开(公告)日：1974-02-26

    申请号：US3794634D

    申请日：1972-03-16

    申请人： DU PONT

    发明人： KEOWN R ,  NYCE J

    IPC分类号： C08L7/00 ,  C08L21/00 ,  C08L21/02 ,  C08L51/00 ,  C08L51/02 ,  C08L51/04 ,  C09J151/00 ,  C08F45/28 ,  C08F45/34

    CPC分类号： C08L51/04 ,  C08L33/04 ,  C08L2666/04

    摘要： THE INVENTION PROVIDES A BLEND OF CHLORINATED BUTADIENE POLYMERS WHICH IS READILY PEPTIZABLE IN ALIPHATIC LIQUIDS TO FORM SPARYABLE DISPERSIONS USEFUL AS ADHESIVES. THE BLEND COMPRISES (A) A GRAFT COPOLYMER OF (1) A CHLORINATED BUTADIENE SELECTED FROM CHLOROPRENE AND 2,3DICHLOROBUTADIENE-1,3, (2) AN ALKYL ACRYLATE OR METHACRYLATE, AS THE GRAFT PORTION, AND (3) UP TO 2% BY WEIGHT OF SULFUR AND (B) A COPOLYMER OF SULFUR AND A CHLORINATED BUTADIENE SELECTED FROM CHLOROPRENE AND 2,3DICHLOROBUTADIENE-1,3. THE PROPORTION BY WEIGHT OF ALKYL ACRYLATE OR METHACRYLATE IS 40 TO 80% IN (A) AND 15 TO 60% IN THE TOTAL COMPOSITION; AND THE PROPORTION OF SULFUR IN (B) IS 0.2 TO 2%. THE NUMBER AVERAGE MOLECULAR WEIGHT BETWEE SULFUR ATOMS IN (B) IS NOT OVER 110,000, AND THE ALKYL GROUP OF THE ALKYL ACRYLATE OR METHACRYLATE IN (A) CONTAINS 1 TO 18 CARBON ATOMS. A PREFERRED METHOD FOR MAKING THE SPRAYABLE DISPERISONS FROM THE BLENDS COMPRISES MIXING THE BLEND WITH AN ORGANIC LIQUID WHICH IS A NON-SOLVENT FOR COMPONENT (B) BUT IS A SOLVENT FOR THE ALKYL ACRYLATE OR METHACRYLATE GRAFT OF COMPONENT (A), MIXING WITH THE RESULTING PRODUCT A THIOPHILIC PEPTIZING AGENT, AND STIRRING UNTIL THE DESIRED DISPERSION IS OBTAINED.

    Polymeric viscosity control additives for silica thixotropic compositions
    5.
    发明授权
    Polymeric viscosity control additives for silica thixotropic compositions 失效
    二氧化硅三元组合物的聚合物粘度控制添加剂

    公开(公告)号：US3718614A

    公开(公告)日：1973-02-27

    申请号：US3718614D

    申请日：1971-02-23

    申请人： AMERICAN CYANAMID CO

    发明人： SMYTH N

    IPC分类号： C01B33/113 ,  C09D5/04 ,  C08F45/40 ,  C08F45/34

    CPC分类号： C09D5/04 ,  C01B33/113

    摘要： Novel thixotropic compositions and processes for their formation employing as viscosity control additives therein members selected from the group consisting of: 1) homopolymers and copolymers of poly(alkylene oxides) having terminal alkyl groups; 2) homopolymers and copolymers of poly(vinyl alkyl esters) and poly(vinyl alkyl ethers) with the optional inclusion of minor amounts of alkylenes and styrenes in said copolymers; 3) 1:1 alternating copolymers of maleic anhydride with alkylenes and styrenes; 4) cellulose esters and mixed cellulose esters of 2-, 3- and 4-carbon acids and mixtures of said esters with the poly(alkylene oxides).

    摘要翻译： 新型触变组合物及其形成方法，其中使用其中的粘度控制添加剂，其中选自：1）具有末端烷基的聚（环氧烷）的均聚物和共聚物; 2）聚（乙烯基烷基酯）和聚（乙烯基烷基醚）的均聚物和共聚物，在所述共聚物中任选地含有少量的亚烷基和苯乙烯; 3）1：1马来酸酐与亚烷基和苯乙烯的交替共聚物; 4）纤维素酯和2-，3-和4-碳酸的混合纤维素酯以及所述酯与聚（环氧烷）的混合物。

    Solvent systems for copclymers of ethylene and acrylic acid
    9.
    发明授权
    Solvent systems for copclymers of ethylene and acrylic acid 失效
    乙烯和丙烯酸聚合物溶剂系统

    公开(公告)号：US3554957A

    公开(公告)日：1971-01-12

    申请号：US3554957D

    申请日：1968-01-11

    申请人： DOW CHEMICAL CO

    发明人： TILBURG EDGAR JOHN VAN

    IPC分类号： C08J3/09 ,  C08F45/34

    CPC分类号： C08J3/091 ,  C08J2323/08

    摘要： A SOLVENT SYSTEM FOR COPOLYMERS OF ETHYLENE ACRYLIC ACID CHARACTERIZED IN THAT THE COPOLYMER WILL REMAIN DISSOLVED AT SUBSTANTIALLY NORMAL ROOM TEMPERATURE COMPRISING BETWEEN ABOUT 55 AND ABOUT 65 PERCENT BY WEIGHT TOLUENE, BASE UPON THE TOTAL WEIGHT OF THE SOLVENT BLEND, AND BETWEEN AND 35 AND ABOUT 45 PERCENT BY WEIGHT TETRAHYDROFURAN, BASED UPON THE TOTAL WEIGHT OF THE SOLVENT BLEND. THE COPOLYMER CAN BE DISSOLVED AND HELD IN SOLUTION AT NORMAL ROOM TEMPERATURE IN AMOUNTS UP TO ABOUT 5 PERCENT BY WEIGHT BASED UPON THE TOTAL WEIGHT OF THE SOLUTION.