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1. 发明授权

US3939135A Cofused resins and their preparation 失效
标题翻译：共混树脂及其制备方法
公开(公告)号：US3939135A
公开(公告)日：1976-02-17
申请号：US113689
申请日：1971-02-08
申请人： Jesse C. H. Hwa , Paul Kraft , Leonard Feiler
发明人： Jesse C. H. Hwa , Paul Kraft , Leonard Feiler
IPC分类号： C08J3/16 , C08F6/14 , C08F6/24
CPC分类号： C08J3/16 , C08J2357/00
摘要： Aqueous suspensions of discrete particles of polymer, for instance polyvinyl latices, are heated with solvents which are at least partially water-miscible, particularly certain shortchain ketones, until the polymer is agglomerated to the desired degree. Various water-soluble inorganic metal salts, especially alkali metal and alkaline earth metal halides and sulfates, may also be added to facilitate the agglomeration. Novel macromolecular resins of high absorptivity are thus produced, comprising the fine particles of polymer cofused in a reticulated structure, the degree of cofusion being controlled at will by the process conditions selected.
摘要翻译：聚合物的离散颗粒例如聚乙烯醇胶乳的水性悬浮液用至少部分水混溶性的溶剂加热，特别是某些短链酮，直到聚合物凝聚到所需的程度。还可以加入各种水溶性无机金属盐，特别是碱金属和碱土金属卤化物和硫酸盐以促进聚集。因此产生具有高吸收性的新型高分子树脂，其包含共混在网状结构中的聚合物的细颗粒，通过所选择的工艺条件随意控制共混程度。

2. 发明授权

US3993715A Process for forming fire retardant polymers of bis (hydrocarbyl) vinylphosphonate 失效
标题翻译：形成双（烃基）乙烯基膦酸酯的阻燃聚合物的方法
公开(公告)号：US3993715A
公开(公告)日：1976-11-23
申请号：US456579
申请日：1974-04-01
申请人： Jesse C. H. Hwa , Paul Kraft
发明人： Jesse C. H. Hwa , Paul Kraft
IPC分类号： C08F2/00 , C08F30/00 , C08F30/02 , C08F230/02 , C08L27/06 , C08L27/08 , C08L27/10
CPC分类号： C08F230/02
摘要： There is disclosed a process for forming modified polymers of: (1) a bis(hydrocarbyl) vinylphosphonate; (2) optionally, a crosslinking monomer containing two or more ethylenically unsaturated bonds; and (3) optionally, one or more comonomers which contain one ethylenically unsaturated bond. The products formed by this process which contain any of the above mentioned monomers are substantially free of unreacted residual bis(hydrocarbyl) vinylphosphonate. The process comprises the post-addition of a monoethylenically unsaturated monomer, the monomer being selected from the group consisting of the vinyl and vinylidene chlorides and bromides and the C.sub.1 -C.sub.20 dialkyl esters of maleic and fumaric acids, to the polymerization medium containing the vinylphosphonate and any optional monomers after the percent conversion of monomers in the polymerization medium has exceeded about 40%.
摘要翻译：公开了一种形成改性聚合物的方法：（1）双（烃基）乙烯基膦酸酯; （2）任选的含有两个或更多个烯属不饱和键的交联单体; 和（3）任选的一种或多种含有一个烯键式不饱和键的共聚单体。通过该方法形成的含有任何上述单体的产物基本上不含未反应的残留的双（烃基）乙烯基膦酸酯。该方法包括将单烯属不饱和单体后加入到包含乙烯基膦酸酯的聚合介质中的单体，所述单体选自乙烯基和偏二氯乙烯和溴化物以及马来酸和富马酸的C 1 -C 20二烷基酯，单体在聚合介质中转化百分比之后的任何单体都超过约40％。

3. 发明授权

US3968077A Method of stabilizing polythiol reaction products 失效
标题翻译：稳定多硫醇反应产物的方法
公开(公告)号：US3968077A
公开(公告)日：1976-07-06
申请号：US497360
申请日：1974-08-14
申请人： Jesse C. H. Hwa , Jung Il Jin
发明人： Jesse C. H. Hwa , Jung Il Jin
IPC分类号： C08L81/00 , C08G75/16 , C08L81/02 , C08L81/04 , C08L83/00 , C08L83/04 , C08K5/00
CPC分类号： C08G75/16 , C08K5/09 , C08K5/15
摘要： The invention is a method of stabilizing a reaction mixture of a polythiol and sulfur. The method comprises contacting said reaction mixture with an effective amount of a stabilizing agent selected from the group consisting of epoxides, acid anhydrides and mixtures thereof.
摘要翻译：本发明是稳定多硫醇和硫的反应混合物的方法。该方法包括使所述反应混合物与有效量的选自环氧化物，酸酐及其混合物的稳定剂接触。

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