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公开(公告)号：US5043118A
公开(公告)日：1991-08-27
申请号：US452166
申请日：1989-12-18
IPC分类号： C04B35/634 , C04B35/80 , C08K3/00 , C08K9/08
CPC分类号： C04B35/6342 , C04B35/634 , C04B35/80 , C08K3/0033 , C08K9/08 , Y10T428/2918 , Y10T428/2933
摘要： An injection moldable ceramic composition is prepared by mixing a sinterable powder, a polyacetal binding agent and silicon carbide whiskers which have been coated with a polyacetal resin.
摘要翻译： 通过将可熔融粉末，聚缩醛粘合剂和已经被聚缩醛树脂涂覆的碳化硅晶须混合来制备注射成型陶瓷组合物。
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公开(公告)号：US5045607A
公开(公告)日：1991-09-03
申请号：US333511
申请日：1989-04-05
摘要： There are provided new moldable blends of a normally crystalline acetal polymer and a normally non-crystalline elastomeric copolymer of about 15 to 45 mol %, preferably about 25 to 35 mol % of trioxane, about 55 to 85 %, preferably about 65 to 75 mol % of 1,3-dioxolane, said mol percents based on the total of trioxane and 1,3-dioxolane, and about 0.005 to 0.15 wt. %, preferably about 0.05 to 0.12 wt. % of 1,4-butanediol diglycidyl ether or butadiene diepoxide as a bifunctional monomer, based on the total weight of copolymer.
摘要翻译： 提供了通常结晶的缩醛聚合物和通常非结晶弹性体共聚物的新的可模制共混物，其为约15至45摩尔％，优选约25至35摩尔％的三恶烷，约55至85重量％，优选约65至75摩尔 ％的1,3-二氧戊环，基于三恶烷和1,3-二氧戊环的总量的摩尔百分比，以及约0.005至0.15重量％ ％，优选约0.05至0.12wt。 ％的1,4-丁二醇二缩水甘油醚或丁二烯二环氧化物作为双功能单体，基于共聚物的总重量。
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公开(公告)号：US4954400A
公开(公告)日：1990-09-04
申请号：US255569
申请日：1988-10-11
IPC分类号： B32B15/01 , B32B7/12 , B32B17/06 , C08G2/10 , C08G2/18 , C08J5/12 , C09J159/00 , C09J163/00
CPC分类号： C09J159/00 , Y10T428/31515 , Y10T428/3163 , Y10T428/31692 , Y10T428/31895
摘要： There are provided new articles comprising elements having surfaces bonded together with a bonding resin which is an elastomeric copolymer of about 15 to 45 mol %, preferably about 25 to 35 mol % trioxane, about 55 to 85 mol %, preferably about 65 to 75 mol % of 1,3-dioxolane, said mol percents based on the total of trioxane and 1,3-dioxolane, and about 0.005 to 0.15 wt. %, preferably about 0.05 to 0.12 wt. % of 1,4-butanediol diglycidyl ether or butadiene diepoxide as a bifunctional monomer, based on the total weight of copolymer. Preferably, at least one of said surfaces, and more preferably at least two of said surfaces bonded to each other are of a crystalline acetal polymer comprising at least 85 mol % of polymerized oxymethylene units.
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公开(公告)号：US4898925A
公开(公告)日：1990-02-06
申请号：US243381
申请日：1988-09-12
申请人： George L. Collins , Kurt F. Wissbrun , Hongkyu Kim
发明人： George L. Collins , Kurt F. Wissbrun , Hongkyu Kim
CPC分类号： C08G2/18
摘要： There are provided new elastomeric copolymers of about 15 to 45 mol %, preferably about 25 to 35 mol % trioxane, about 55 to 85 mol %, preferably about 65 to 75 mol % of 1,3-dioxolane, said mol percents based on the total of trioxane and 1,3-dioxolane, and about 0.005 to 0.15 wt. %, preferably about 0.05 to 0.12 wt. % of 1,4-butanediol diglycidyl ether or butadiene diepoxide as a bifunctional monomer, based on the total weight of copolymer. The elastomeric copolymers may be prepared by mixing said monomers in a substantially dry state and under an inert atmosphere with a cationic polymerization catalyst, e.g, p-nitrobenzenediazonium tetrafluoroborate. The elastomeric copolymers have a strong interaction with moldable, crystalline acetal polymers comprising at least 85 mol % of polymerized oxymethylene units and may be used as a blending agent with such crystalline acetal polymers or as a bonding agent to improve the adhesiveness of the crystalline acetal polymer to other materials.
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公开(公告)号：US4937312A
公开(公告)日：1990-06-26
申请号：US448746
申请日：1989-12-11
申请人： George L. Collins , Kurt F. Wissbrun , Hongkyu Kim
发明人： George L. Collins , Kurt F. Wissbrun , Hongkyu Kim
IPC分类号： C08G2/18
CPC分类号： C08G2/18
摘要： There are provided new elastomeric copolymers of about 15 to 45 mol %, preferably about 25 to 35 mol % trioxane, about 55 to 85 mol %, preferably about 65 to 75 mol % of 1,3-dioxolane, said mol percents based on the total of trioxane and 1,3-dioxolane, and about 0.005 to 0.15 wt. %, preferably about 0.05 to 0.12 wt. % of 1,4-butanediol diglycidyl ether or butadiene diepoxide as a bifunctional monomer, based on the total weight of copolymer. The elastomeric copolymers may be prepared by mixing said monomers in a substantially dry state and under an inert atmosphere with a cationic polymerization catalyst, e.g., p-nitrobenzenediazonium tetrafluoroborate. The elastomeric copolymers have a strong interaction with moldable, crystalline acetal polymers comprising at least 85 mol % of polymerized oxymethylene units and may be used as a blending agent with such crystalline acetal polymers or as a bonding agent to improve the adhesiveness of the crystalline acetal polymer to other materials.
摘要翻译： 提供了约15至45摩尔％，优选约25至35摩尔％三恶烷，约55至85摩尔％，优选约65至75摩尔％的1,3-二氧戊环的新的弹性体共聚物，所述摩尔百分比基于 三恶烷和1,3-二氧戊环的总量，以及约0.005至0.15wt。 ％，优选约0.05至0.12wt。 ％的1,4-丁二醇二缩水甘油醚或丁二烯二环氧化物作为双功能单体，基于共聚物的总重量。 弹性体共聚物可以通过将基本上干燥的状态和惰性气氛下的所述单体与阳离子聚合催化剂如对硝基苯基氮鎓四氟硼酸盐混合来制备。 弹性体共聚物与包含至少85摩尔％的聚合甲醛单元的可模塑的结晶缩醛聚合物具有强相互作用，并且可以用作与这种结晶缩醛聚合物或粘合剂的共混剂，以改善结晶缩醛聚合物的粘合性 到其他材料。
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公开(公告)号：US5156913A
公开(公告)日：1992-10-20
申请号：US448401
申请日：1989-12-11
申请人： George L. Collins , Edwina Ying
发明人： George L. Collins , Edwina Ying
CPC分类号： C03C25/26 , C08K9/04 , Y10T428/2904 , Y10T428/2907 , Y10T428/2933 , Y10T428/2964
摘要： There are provided novel mixtures and composites comprising a normally crystalline acetal polymer and a reinforcing material comprising glass fibers or filaments sized with a normally non-crystalline elastomeric copolymer of about 15 to 45 mol %, preferably about 25 to 35 mol % of trioxane, about 55 to 85 mol %, preferably about 65 to 75 mol % of 1,3-dioxolane, said mol percents based on the total of trioxane and 1,3-dioxolane, and about 0.005 to 0.15 wt. %, preferably about 0.05 to 0.12 wt. % of 1,4-butanediol diglycidyl ether or butadiene diepoxide as a bifunctional monomer, based on the total weight of copolymer.
摘要翻译： 提供了新颖的混合物和复合材料，其包含常规结晶的缩醛聚合物和增强材料，所述增强材料包含玻璃纤维或长丝，所述玻璃纤维或长丝的尺寸与通常为约15至45摩尔％，优选约25至35摩尔％的三恶烷的弹性共聚物约为 55至85摩尔％，优选约65至75摩尔％的1,3-二氧戊环，所述摩尔百分比基于三恶烷和1,3-二氧戊环的总量，以及约0.005至0.15重量％ ％，优选约0.05至0.12wt。 ％的1,4-丁二醇二缩水甘油醚或丁二烯二环氧化物作为双功能单体，基于共聚物的总重量。
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公开(公告)号：US4816107A
公开(公告)日：1989-03-28
申请号：US96189
申请日：1987-09-14
IPC分类号： C08G2/18 , C08G65/26 , C08J5/12 , C09J171/00 , C09J5/02
CPC分类号： C08J5/125 , C08G2/18 , C08J2359/02 , Y10T428/31504 , Y10T428/31942 , Y10T428/31946
摘要： Oxymethylene polymer bonded articles, such as multilayer laminates, are disclosed. Such articles are prepared by bonding together at least two articles shaped or molded from crystalline oxymethylene homo-, co- and terpolymers using, as an adhesive, a low Tg copolymer of trioxane and 1,3-dioxolane which have a dioxolane content greater than 65 mol percent and less than about 75 mol percent and an IV of from about 1.0 to about 2.3, and which are non-crystalline at room temperature or above.
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公开(公告)号：US20140100111A1
公开(公告)日：2014-04-10
申请号：US13772608
申请日：2013-02-21
IPC分类号： C09D189/00
CPC分类号： C09D189/00 , C09D101/16 , C09D103/06 , C09D105/00 , C09D105/02 , C09D105/08 , C09D189/06 , C08L5/00 , C08L89/00 , C08L89/06 , C08L5/08 , C08L5/02 , C08L1/16 , C08L3/06
摘要： A bio-degradeable seed coating composition for enhanced seed protection and propagation comprises a gelatin-based hydrogel formulation consisting of a naturally derived, hydrophilic protein in combination with a sulfated or non-sulfated polysaccharide. The protein is animal porcine or bovine derived while the polysaccharide is preferably a cellulose derivative such as sodium cellulose sulfate, dextran sulfate, sulfated chitosan, sulfated starch and mixtures thereof. The seed coating composition may also comprise a rheology modifier comprising a clay, a dessicant or silica gel.
摘要翻译： 用于增强种子保护和增殖的生物可降解种子包衣组合物包括由天然衍生的亲水性蛋白质与硫酸化或非硫酸化多糖组合的明胶基水凝胶制剂。 蛋白质是动物猪或牛，而多糖优选为纤维素衍生物，例如硫酸锌纤维素，硫酸葡聚糖，硫酸化壳聚糖，硫酸化淀粉及其混合物。 种子包衣组合物还可以包含含有粘土，干燥剂或硅胶的流变改性剂。
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公开(公告)号：US5166224A
公开(公告)日：1992-11-24
申请号：US636811
申请日：1991-01-02
摘要： Non-crystalline elastomeric acetal polymers are disclosed which have ethylenic unsaturation in the polymer backbone. The polymers are synthesized by the ring-opening polymerization of 1,3-dioxolane, 1,3-dioxepane, and the cyclic formal of an ethylenically unsaturated diol having at least 4 adjacent carbon atoms in its main chain. The preferred cyclic formal is 4,7-dihydro-1,3-dioxepin. Because of the ethylenic unsaturation, the elastomeric acetal polymers can be vulcanized or cured with multifunctional vinyl monomers to produce elastomers with improved properties, such as better elasticity, decreased thermoplasticity and decreased solubility. The elastomeric acetals in any of their embodiments are particularly useful for blending with crystalline acetal polymers to improve the impact resistance of the crystalline acetal polymers.
摘要翻译： 公开了在聚合物主链中具有烯属不饱和键的非结晶弹性体缩醛聚合物。 聚合物通过其主链中具有至少4个相邻碳原子的1,3-二氧戊环，1,3-二氧杂环庚烷和烯键式不饱和二醇的环状缩甲醛的开环聚合合成。 优选的环状缩甲醛是4,7-二氢-1,3-二氧杂环庚烯。 由于烯属不饱和度，弹性体缩醛聚合物可以用多官能乙烯基单体硫化或固化，以生产具有改进性能的弹性体，例如更好的弹性，降低的热塑性和降低的溶解度。 其任何实施方案中的弹性体缩醛特别可用于与结晶缩醛聚合物共混以改善结晶缩醛聚合物的耐冲击性。
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公开(公告)号：US4788258A
公开(公告)日：1988-11-29
申请号：US96187
申请日：1987-09-14
申请人： George L. Collins , Paul Zema , William M. Pleban
发明人： George L. Collins , Paul Zema , William M. Pleban
CPC分类号： C08G2/00
摘要： Low Tg copolymers of trioxane and 1,3-dioxolane which have a dioxolane content greater than 65 mol percent and less than about 75 mol percent and an IV of from about 1.0 to about 2.3, and which are non-crystalline at room temperature or above, are disclosed. These polymers, when blended with crystalline oxymethylene polymers, improve the latter's impact properties. They can also be used as adhesives for crystalline oxymethylene polymers.
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