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公开(公告)号：US4843115A
公开(公告)日：1989-06-27
申请号：US154439
申请日：1988-02-09
IPC分类号： C08K5/3492 , C08L59/02
CPC分类号： C08K5/3492 , C08L59/02
摘要： An oxymethylene polymer composition which exhibits a reduced tendency to form mold deposits upon molding, reduced tendency to discolor under thermal stress and low extractable formaldehyde levels is provided by utilizing as a stabilizer a major amount of superpolyamide and a minor amount of a cyclic amidine compound of the formula: ##STR1## wherein R is phenyl, polynuclear aromatic, heterocyclic, cycloaliphatic and aliphatic containing at least 6 carbon atoms, as well as substituted derivatives of the listed substituents.
摘要翻译： 通过以大量的超聚酰胺和少量的环状脒化合物的稳定剂作为稳定剂，提供了在成型时表现出模具沉积的趋势降低的趋势，在热应力下降低的倾向和低可提取甲醛水平的甲醛聚合物组合物 其中R是苯基，含有至少6个碳原子的多核芳族，杂环，脂环族和脂族，以及所列取代基的取代衍生物。
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2.发明授权Grafting of functional compounds onto functional oxymethylene polymer backbones, with diisocyanate coupling agents, and the graft polymers thereof 失效功能性化合物与功能性甲醛聚合物主链，二异氰酸酯偶联剂及其接枝聚合物接枝
公开(公告)号：US5043398A
公开(公告)日：1991-08-27
申请号：US350811
申请日：1989-05-12
CPC分类号： C08G18/8064 , C08G18/10 , C08G18/56 , C08G2/18
摘要： Novel oxymethylene graft polymers are obtained by grafting a functional compound (i.e., a polymer or compound having one or two hydroxyl, carboxyl, or amine functional groups) onto an oxymethylene backbone having pendant hydroxyl groups which serve as reactive sites for the graft reaction with diisocyanate coupling agents.
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3.发明授权Grafting of amine functional polymers onto functionalized oxymethylene polymers and the resulting graft polymers thereof 失效将胺官能聚合物接枝到官能化甲醛聚合物上及其所得的接枝聚合物
公开(公告)号：US5206308A
公开(公告)日：1993-04-27
申请号：US664436
申请日：1991-03-04
IPC分类号： C08G81/00
CPC分类号： C08G81/00 , Y10S525/926 , Y10S525/927
摘要： Novel oxymethylene graft polymers are obtained by grafting, via Michael addition, an amine functional polymer onto an oxymethylene backbone having pendant acrylate or substituted acrylate ester groups serving as reactive sites for the graft reaction.
摘要翻译： 通过迈克尔加成将胺官能聚合物接枝到具有侧链丙烯酸酯或用作接枝反应的反应性位点的取代的丙烯酸酯基团的甲醛主链上获得新的甲醛接枝聚合物。
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4.发明授权Novel polyacetal copolymers of trioxane and 1,2,6-hexanetriol formal derivatives 失效三恶烷和1,2,6-己三醇正式衍生物的新型聚缩醛共聚物
公开(公告)号：US4975518A
公开(公告)日：1990-12-04
申请号：US350791
申请日：1989-05-12
摘要： Cationic copolymerization of trioxane and 1,2,6-hexanetriol formal (HTF) or its ester derivatives yields acetal copolymers having pendant functional groups. The HTF formal or ester derivatives of HTF may therefore include functional groups selected from hydroxyl or ester moieties which are protected, and thus survive, the copolymerization with trioxane. These groups may then be present as functional reactive sites for the subsequent synthesis of block copolymers and/or to chemically bind modifiers to the acetal copolymer backbone, for example.
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5.发明授权
公开(公告)号：US4727106A
公开(公告)日：1988-02-23
申请号：US932235
申请日：1986-11-18
申请人： James L. Paul , Andrew B. Auerbach
发明人： James L. Paul , Andrew B. Auerbach
摘要： An oxymethylene polymer composition which exhibits improved thermal stability is provided by utilizing as a stabilizer a major amount of superpolyamide and a minor amount of a transition metal salt.
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6.发明授权Novel polyacetal copolymers of trioxane and trimethylolpropane formal derivatives 失效三恶烷和三羟甲基丙烷正式衍生物的新型聚缩醛共聚物
公开(公告)号：US5004798A
公开(公告)日：1991-04-02
申请号：US350799
申请日：1989-05-12
申请人： Jerry A. Broussard , Andrew B. Auerbach , Nan L. Yang , James L. Paul , Yong C. Zheng , Chong L. Zhang
发明人： Jerry A. Broussard , Andrew B. Auerbach , Nan L. Yang , James L. Paul , Yong C. Zheng , Chong L. Zhang
CPC分类号： C08G2/24
摘要： Cationic copolymerization of trioxane and trimethylolpropane (TMP) formal or its ester derivatives yields acetal copolymers having pendant functional groups. The TMP formal or ester derivatives of TMP formal may therefore include functional groups selected from hydroxyl or ester moieties which are protected and thus survive the copolymerization with trioxane. These groups may then be present as functional reactive sites for the subsequent synthesis of block copolymers and/or to chemically bind modifiers to the acetal copolymer backbone, for example.
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公开(公告)号：US5079340A
公开(公告)日：1992-01-07
申请号：US693192
申请日：1991-04-30
摘要： A thermoplastic polyketone polymer composition having thermoset properties, processes for its production, and articles made thereof are disclosed. This composition also having improved continuous use temperature and thermal stability properties can be produced by crosslinking, at elevated temperatures, a thermoplastic polyketone resin with a suitable basic material. Optionally, suitable lubricants or fillers can also be added to further improve the properties of the resulting composition.
摘要翻译： 公开了一种具有热固性质的热塑性聚酮聚合物组合物，其生产方法及其制成的制品。 具有改善的连续使用温度和热稳定性的组合物可以通过在高温下交联具有合适基础材料的热塑性聚酮树脂来制备。 任选地，也可以加入合适的润滑剂或填料以进一步改善所得组合物的性质。
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公开(公告)号：US4302252A
公开(公告)日：1981-11-24
申请号：US145333
申请日：1980-04-30
CPC分类号： C08J3/096 , C08B1/003 , C08K3/16 , C08J2301/02
摘要： Cellulose is activated by penetration of the cellulose with a polar medium and mixed at a temperature at which no significant degradation occurs with an amide selected from the group consisting of dimethylacetamide, 1-methyl-2-pyrrolidinone and mixtures thereof and from 3 to 15% by weight of lithium chloride. The cellulose is then dissolved in the amide and lithium chloride in the substantial absence of any polar medium other than the amide. Shaped cellulosic products may be formed by reconstituting the cellulose in fiber, sheet or other form.
摘要翻译： 纤维素通过用极性培养基渗透纤维素而被活化，并在不与二甲基乙酰胺，1-甲基-2-吡咯烷酮及其混合物组成的组中的酰胺不发生明显降解的温度下混合，并且3-15％ 的氯化锂。 然后将纤维素溶解在酰胺和氯化锂中，基本上不存在除酰胺之外的任何极性介质。 可以通过以纤维，片材或其它形式重建纤维素来形成成型的纤维素产品。
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公开(公告)号：US4118350A
公开(公告)日：1978-10-03
申请号：US833077
申请日：1977-09-14
IPC分类号： C08L1/12
CPC分类号： C08L1/12
摘要： The tendency of cellulose acetate solutions, containing methylolated polymers of melamine or guanamine, to prepolymerize or gel is reduced by the addition to the solutions of an amine oxide. The amine oxide also acts to reduce the viscosity of the cellulose acetate solutions.
摘要翻译： 通过加入到氧化胺溶液中，减少含有三聚氰胺或胍胺的羟甲基化聚合物预聚合或凝胶的乙酸纤维素溶液的倾向。 氧化胺还用于降低醋酸纤维素溶液的粘度。
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公开(公告)号：US5047465A
公开(公告)日：1991-09-10
申请号：US376525
申请日：1989-07-07
申请人： Andrew B. Auerbach
发明人： Andrew B. Auerbach
摘要： The present invention relates to an impact resistant polymeric composition comprising a polyarylene sulfide and a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein at least one graftable functional molecule is grafted to the block copolymer in the vinylarene block.
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