公开(公告)号：US5286808A

公开(公告)日：1994-02-15

申请号：US735486

申请日：1991-07-25

申请人： George L. Collins ,  William M. Pleban ,  Paul Zema

发明人： George L. Collins ,  William M. Pleban ,  Paul Zema

IPC分类号： C08G2/18 ,  C08L29/14

CPC分类号： C08G2/18

摘要： Crosslinked elastomeric acetal polymers are made by the copolymerization of 1,3-dioxolane with a smaller amount of one or more bifunctional monomers. The two functional groups of the bifunctional monomer react under the same cationic polymerization conditions as the 1,3-dioxolane. The elastomeric acetal polymer does not crystallize even when the temperature is as low as -50.degree. C. The elastomeric acetal polymer is particularly useful for blending with crystalline acetal polymers to yield a composition with improved impact resistance.

摘要翻译： 交联的弹性体缩醛聚合物通过1,3-二氧戊环与较少量的一种或多种双官能单体的共聚来制备。 双功能单体的两个官能团在与1,3-二氧戊环相同的阳离子聚合条件下反应。 即使温度低至-50℃，弹性体缩醛聚合物也不会结晶。弹性体缩醛聚合物特别可用于与结晶缩醛聚合物共混以产生具有改善的耐冲击性的组合物。

公开(公告)号：US4758608A

公开(公告)日：1988-07-19

申请号：US96188

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

IPC分类号： C08F2/48 ,  C08F283/06 ,  C08F290/00 ,  C08F299/02 ,  C08G2/00 ,  C08G2/18 ,  C08G2/24 ,  C08G2/26 ,  C08L59/04

CPC分类号： C08G2/00 ,  C08F283/06

摘要： Ultraviolet curable terpolymers of trioxane, from at least 65 weight percent to about 75 weight percent of 1,3-dioxolane and from about 2 weight percent to about 20 weight percent of a monoethylenically unsaturated aliphatic diol formal having at least 4 carbon atoms in its main chain, e.g., 4,7-dehydro- 1,3-dioxepin, which are non-crystalline at room temperature or above are disclosed. These terpolymers, when admixed with a multifunctional crosslinking monomer, e.g., a multifunctional acrylate such as 1,6-hexanediol diacrylate, and a photosensitizer, e.g., a benzoin compound such as benzoin isobutyl ether, can be cured to an insoluble, non-tacky, rubbery state using UV radiation. The thus-cured polymeric materials form useful crosslinked films, and when cryogenically ground to a suitable small particle size can be blended with conventionally prepared crystalline oxymethylene homo-, co- and terpolymers to improve the latters' impact properties.

公开(公告)号：US4652613A

公开(公告)日：1987-03-24

申请号：US808969

申请日：1985-12-16

申请人： George L. Collins ,  Paul Zema ,  Yusuf A. Rashada

发明人： George L. Collins ,  Paul Zema ,  Yusuf A. Rashada

IPC分类号： C08G2/38 ,  C08L21/00 ,  C08L59/00 ,  C08L87/00 ,  C08L61/00 ,  C08F8/00

CPC分类号： C08L59/00 ,  C08G2/38 ,  C08L87/005 ,  C08L21/00

摘要： Novel elastomer/oxymethylene polymer blends are disclosed whose impact strength or resistance has been enhanced, with no appreciable diminution in their outer useful properties, by the inclusion therein of a novel elastomer/oxymethylene graft copolymer compatibilizing agent prepared by grafting polyformaldehyde or oxymethylene copolymer chains onto a halogenated elastomeric polymer by means of a reaction initiated at graft sites, i.e., at the sites of the haloelastomer's halo substituents, using, e.g., an initiated site-forming cationic salt.

摘要翻译： 公开了新型的弹性体/甲醛聚合物共混物，其冲击强度或电阻增强，其外部有用性质没有明显的降低，通过在其中加入通过将聚甲醛或甲醛共聚物链接枝到其上制备的新的弹性体/甲醛接枝共聚物相容剂 通过在接枝位点引发的反应即卤代弹性体的卤素取代基的位置使用例如引发位点形成阳离子盐的卤化弹性体聚合物。

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

IPC分类号： C08G65/26 ,  C08G2/00 ,  C08G63/76 ,  C08L59/04

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.