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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4332917 B1

PDFFull Text
Date of Patent:
Jun. 01, 1982

Filed:

Dec. 20, 1979

Method of preparing a polymer mixture, formed products obtained

Applicant:
Inventors:

Adolf Heslinga, HD Pijnacker, NL;

Pieter J Greidanus, MK Leiden, NL;

Assignee:

Nederlandse Centrale Organisatie voor Toegepast-Natuurwetenschappelijk, , US;

Attorney:

Lewen; Bert J.

Primary Examiner:

H S Cockeram

Int. Cl.
CPC ...
C08L / ; C08L / ; A61K / ; C08F / ;
U.S. Cl.
CPC ...
521134 ; 424 78 ; 525192 ; 525193 ; 525194 ; 525197 ; 525198 ; 525207 ; 528501 ; 524 37 ; 524 40 ; 524 41 ; 524549 ;
Abstract

Method for preparing a polymer alloy which is stable and homogeneous up to high temperatures, from component (a) one or more polymers of high molecular weight, having anhydride groups and component (b) one or more polymers of high molecular weight, having groups which have the ability to interact with hydrogen atoms to form hydrogen bonds, wherein first a solution of component (a) is prepared in an organic solvent, to which solution then component (b) is added, whereas component (a) in dissolved state is protolyzed in whole or in part, prior to or after the addition of component (b) under the action of protolyzing agents, whereupon the solvent is removed; together with the formed products obtained from such a polymer alloy, such as granules, fibres, foils, foam, etc.

Find Patent Forward Citations

Heslinga, Adolf. (1982). Method of preparing a polymer mixture, formed products obtained (U.S. Patent No. 4332917). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4332917

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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