logo

For the Inventor, By the Inventor

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 5418310 B1

PDFFull Text
Date of Patent:
May. 23, 1995

Filed:

Feb. 24, 1994

Mixture of isocyanate-terminated polyurethane prepolymers having good

Applicant:
Inventor:

Lani S Kangas, Woodbury, MN (US);

Assignee:

Minnesota Mining and Manufacturing Company, St. Paul, MN (US);

Attorneys:

Griswold; Gary L.

Kirn; Walter N.

Skolnick; Steven E.

Primary Examiner:

Thomas Hamilton, III

Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528 59 ; 4284231 ; 525440 ; 525457 ; 525460 ; 528 67 ; 528 76 ; 528 83 ;
Abstract

A blend of isocyanate-terminated polyurethane prepolymers comprising: (a) a first prepolymer which comprises the reaction product of an at least essentially semicrystalline hydroxy-functional material and a polyisocyanate; (b) a second prepolymer which comprises the reaction product of a poly(tetramethylene glycol)ether and a polyisocyanate; and (c) a third prepolymer which comprises the reaction product of an essentially amorphous hydroxy-functional material and a polyisocyanate. The blend may also include a fourth prepolymer which comprises the reaction product of a slightly branched hydroxy-functional material and a polyisocyanate.

Find Patent Forward Citations

Kangas, Lani. (1995). Mixture of isocyanate-terminated polyurethane prepolymers having good (U.S. Patent No. 5418310). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5418310

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

Loading…