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:
Apr. 28, 1981
Filed:
Nov. 20, 1979
Applicant:
Inventor:
James M Cross, New Martinsville, WV (US);
Assignee:
Mobay Chemical Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526332 ; 260 / ; 260 / ; 521174 ; 526 87 ; 526333 ; 528 75 ;
Abstract
The instant invention is directed to novel hydroxy-functional vinyl copolymers. The copolymers diclosed herein are produced by polymerizing styrene in the presence of a mono- or diallyl ether of a saturated aliphatic polyol having a hydroxyl functionality of 3 or 4. The resultant copolymer is characterized as having an OH number of between about 45 and about 100 and a number average molecular weight between about 7000 and about 20,000. The resultant copolymerizate is further characterized as forming a substantially clear, colorless solution with conventional liquid polyether polyols used and known in the polyurethane art.