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:
Dec. 14, 2004
Filed:
Dec. 08, 2000
Steven P. Bitler, Menlo Park, CA (US);
Ray F. Stewart, Redwood City, CA (US);
Mark A. Wanthal, Redwood Shores, CA (US);
David A. Kamp, Sunnyvale, CA (US);
Paul A. Meyers, San Ramon, CA (US);
David D. Taft, Atherton, CA (US);
Donald A. Schultz, San Mateo, CA (US);
Landec Corporation, Menlo Park, CA (US);
Abstract
Novel modifying agents contain a sharply-melting crystalline polymer ingredient, preferably a side chain crystalline (SCC) ingredient, and an active chemical ingredient. Such modifying agents, especially when in the form of particles, can be placed in contact with a matrix, will not modify the matrix below the crystalline melting point T , but will rapidly modify the matrix above T . The active chemical ingredient can react with the matrix, catalyze a reaction of the matrix, or inhibit a reaction of the matrix. Particularly useful compositions are polymer precursors which are storage-stable at low temperatures but which are rapidly converted to crosslinked resins when heated to temperatures above T , optionally in the presence of light.