Elastomeric polybutylene polymer

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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525240, C08F 1008

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active

H00015830

ABSTRACT:
It is herein disclosed a novel elastomeric polybutylene-1 having and exhibiting syndiotacticity of greater than ten percent, and possessing other desirable properties.
The novel elastomeric polybutylene-1 can be blended with compatible materials such as polypropylene and its copolymers, ethylene-propylene block copolymers, butyl rubbers and polyisobutylene. Such compositions are particularly suitable in films, hot melt adhesives, textile and fiber applications.
The novel elastomeric polybutylene-1 can also be blended with incompatible materials such as ethylenically unsaturated esters (EVA, EMA, EMAA, EEA), polyester, nylon, polystyrene, styrene block copolymers (SEBS, SIS, SBS) and polyethylenes into a composition having soft and improved elastic properties. Such blends are particularly useful in easy-open packaging and foam applications, and in PVC replacement. When oriented, films made of such blends are used as soft and elastic shrink films.
The novel elastomeric polybutylene-1 can also be blended with both incompatible and compatible materials.

REFERENCES:
patent: H179 (1986-12-01), Klingensmith et al.
patent: 4298722 (1981-11-01), Collette et al.
patent: 4554321 (1985-11-01), Hwo et al.
patent: 4713282 (1987-12-01), Yazaki et al.
patent: 4971936 (1990-11-01), Wilson

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