Crosslinkage polymeric compounds

Details Crosslinkage polymeric compounds Crosslinkage polymeric compounds

1977-12-27

1979-06-19

Wong, Jr., Harry

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528177, 528183, C08G 6312, C08G 6346

Patent

active

041587308

ABSTRACT:
The invention relates to organic polymers which can be crosslinked under the action of light and which are suitable for carrying out photomechanical processes. These polymers are photochemically considerably more sensitive than known comparable polymers and their sensitivity can additionally also be further increased by means of a combination with sensitisers. The molecular weight is at least 1,000. The polymers contain, as light-sensitive groups, groups of the formula I ##STR1## wherein R and R.sub.1 independently of one another denote alkyl groups with at most 4 C atoms, or R and R.sub.1 conjointly denote the remaining part of a 5-membered to 6-membered carbocyclic ring.

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patent: 3887582 (1975-06-01), Holub et al.
M. Kato et al., Polymer Letters, 8, 263 (1970).
N. J. Turro, Molecular Photochemistry, W. A. Benjamin (1965), p. 107.

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