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 8048979 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 01, 2011

Filed:

Dec. 30, 2005
Applicants:

Asha Syamakumari, Thiruvananthapuram, IN;

Chennakkattu Krishna Sadasivan Pillai, Thiruvananthapuram, IN;

Inventors:

Asha Syamakumari, Thiruvananthapuram, IN;

Chennakkattu Krishna Sadasivan Pillai, Thiruvananthapuram, IN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/50 (2006.01); C08G 18/00 (2006.01); C08G 18/67 (2006.01); C08G 18/04 (2006.01); C08G 18/06 (2006.01); C08G 18/68 (2006.01); C08F 18/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention involves the design of a radiation curable organic pre polymer resin material based on urethane acrylic linkage synthesized from the natural renewable resource cardanol or a derivative thereof, for coating application. These new molecules have a faster and better curing rate compared to the starting renewable resource—cardanol. This is brought about by the hydrogen bonding of the urethane linkage which leads to a pre organization of the molecules in such a way as to bring the cross linkable double bonds closer to each other. The present invention also involves a UV curable formulation of the above mentioned resins along with 2-10 parts by weight of a photopolymerization initiator. The resin, either in a formulation or alone turns into a cross linked film upon photopolymerization in presence of photoinitiator under a UV curable radiation source like a mercury vapor pressure lamp.


Find Patent Forward Citations

Syamakumari, Asha. (2011). Process for synthesis of telechelic urethane acrylate uv curable pre-polymeric materials (U.S. Patent No. 8048979). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8048979

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