GB835152A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Improved polymer compositions
Assignee: Imperial Chemical Industries Ltd
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Filing: 1957-08-07
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Granted: —
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Expires: 1977-08-07
Abstract
Abstract A composition comprises isotactic polypropylene (i.e. at least 75% being insoluble in heptane) and a minor amount of a rubbery polymer of isobutylene. Specified polymers are polyisobutylenes, isobutylene/isoprene copolymers, and rubbery styrene/isobutylene copolymers. The polymer preferably has a molecular weight in the range 80,000 to 100,000, and is present in 5-30%. The composition may contain additives, e.g. antioxidants, and may be used to form mouldings or extrusions.
Inventors
- 👤 Arthur William Birley
- 👤 Stanley Turner
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-23 04:09
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/18; C08L23/20; C08L23/22
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