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. 26, 2006
Filed:
Mar. 30, 2001
Alan William Hall, Cottingham, North Humberside, GB;
Alan William Hall, Cottingham, North Humberside, GB;
Qinetiq Limited, Hants, GB;
Abstract
A copolymer containing repeat units formed from the monomers (I) and (II), wherein each R, if present, is independently hydrogen or hydrocarbyl; r is 0, 1 or 2; s is either 2 or 3; R–Rare each independently hydrogen or hydrocarbyl; Rand Rare each independently hydrogen, halo or hydrocarbyl; Pis the anion formed by loss of a proton from a proton donating group P—H; Z is either a bond or hydrocarbyl; Rand Rare each independently hydrogen, halo or hydrocarbyl; and either (a) A is an electron accepting group and W is either hydrogen or hydrocarbyl, (b) W is an electron accepting group and A is either a bond or hydrocarbyl or (c) both A and W are electron accepting groups. The invention also provides a method for preparing the copolymer by polymerising a mixture of (I) and (II) or their non-ionised precursors, preferably by exposure to ultraviolet radiation. The invention also relates to the uses of the copolymer in adhesive, coating, sealant and stereolithographic compositions