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:
Sep. 11, 2001
Filed:
Jun. 26, 1998
Ajay Kumar Luthra, South Harrow, Middlesex HA2 8UA, GB;
Shivpal Singh Sandhu, Slough, Berkshire SL3 7PW, GB;
Other;
Abstract
A biocompatible, lubricious, hydrophilic material useful for coating medical devices or for blending into polymer compositions intended for making medical devices comprises a terpolymer of 5 to 25 mole percent of a polymerisable monomer (1) having a polyethylene oxide unit with an average degree of polymerisation from 5 to 18 and a polymerisable carbon-carbon double bond, 5 to 30 mole percent of a polymerisable monomer (2) having a polyethylene oxide unit with an average degree of polymerisation from 19 to 65 and polymerisable carbon-carbon double bond, and 45 to 90 mole percent of an alkyl methacrylate (3): (1) CH,═C(R)—CO—[—O—CH,—CH,—],—O—R where n1 is from 5 to 18, and each R is independently H or CH,; (2) CH,═C(R)—CO—[—O—CH,—CH,—],—O—R where n2 is from 19 to 65 and each R is independently H or CH,; (3) CH,═C(CH,)—CO,—(CH,),—CH,where m is from 3 to 17, which may be made by the aqueous emulsion polymerisation of the monomers.