Polymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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Reexamination Certificate

active

07112639

ABSTRACT:
A copolymer containing repeat units formed from the monomers (I) and (II), wherein each R1, if present, is independently hydrogen or hydrocarbyl; r is 0, 1 or 2; s is either 2 or 3; R2–R4are each independently hydrogen or hydrocarbyl; R5and R6are each independently hydrogen, halo or hydrocarbyl; Pd−is the anion formed by loss of a proton from a proton donating group Pd—H; Z is either a bond or hydrocarbyl; R7and R8are 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

REFERENCES:
patent: 3891576 (1975-06-01), Battaerd
patent: 3941724 (1976-03-01), Bolto
patent: 5837789 (1998-11-01), Stockhausen et al.
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patent: 4-108452 (1992-04-01), None
patent: 0006533 (2000-02-01), None
patent: 0006658 (2000-02-01), None

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Profile ID: LFUS-PAI-O-3611634

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