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.:
Date of Patent:
Oct. 17, 1978
Filed:
Jun. 14, 1976
Applicant:
Inventors:
Marshall T Purvis, Newtown, PA (US);
R Peter Grant, Newtown, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
921 81 ; 2608 / ; 260885 ; 521134 ;
Abstract
A modifier system for extruding PVC foam comprising two separate core-shell polymers, the shells of which are substantially ungrafted to the cores. Also disclosed is an improved process for extruding PVC foam and improved extruded PVC foam composition and articles.
Purvis, Marshall. (1978). Modifiers for pvc foam, process for extruding modified pvc foam and (U.S. Patent No. 4120833). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4120833
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile