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US 5,315,031 AGranted
Oligomers with polydiene sequences and photocrosslinkable grafts and their application particularly in coating metals
AssigneeAtochem
InventorsBernard Boutevin, Etienne Fleury, Jean-Pierre Parisi
Life of this patent
Estimating the term…
Abstract
Oligomers with polydiene sequences and crosslinkable grafts are useful as coatings for protecting metal surfaces as well as inking buffers. The oligomers contain a polydiene sequence of 1-100 diene links, from 1 to 20 polar functional groups, and from 1-20 acrylic or methacrylic groups. The oligomers have the general formula: ##STR1##
Claims8
An oligomer with polydiene sequences and photocrosslinkable grafts, the repeating group having the formula:
- ##STR19## wherein:
- Xi represents a diene monomer selected from the group consisting of isoprene, butadiene and chloroprene, polymerized according to a cis- or trans-1,4-chaining;
- Yi represents a diene monomer selected from the group consisting of isoprene, butadiene and chloroprene, polymerized according to a 1,2- or 3,4-chaining;
- Ri is a thio- or disulfide-containing radical having in the chain or on the end one or more NH.sub.2, --OH, or --COOH groups;
- Q is an acrylic or methacrylic derivative obtained by condensing acrylic acid, methacrylic acid, glycidyl acrylate, glycidyl methacrylate, aziridinyl acrylate or aziridinyl methacrylate with the NH.sub.2, --OH, or --COOH group of Ri;
- and
- x+y+z+t is less than or equal to 100;
- z being from 1 to 20;
- and
- t being 0 or from 1 to 20.
7 more elements
An oligomer of the formula:
- ##STR20##
An oligomer of the formula:
- ##STR21##
An oligomer of the formula:
- ##STR22##
An oligomer of the formula:
- ##STR23##
An oligomer of the formula:
- ##STR24##
Dependencies are inferred from the claim text.