"Acrylic" ladder polymers
AssigneeE. I. Du Pont de Nemours and Company
InventorDotsevi Y. Sogah
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Abstract
Acrylic "Ladder" polymers and their preparation from difunctional monomers and difunctional initiators.
Claims67
A Group Transfer Polymerization (GTP) process resulting in the formation of ladder polymers comprising contacting, under polymerizing conditions in the presence of a solvent, at high dilution, one or more difunctional monomers or mixtures of difunctional monomers with a difunctional initiator, in the presence of a suitable co-catalyst, and wherein the monomers are added to the initiator at a rate that is slow enough so that the said ladder polymers are not caused to be insoluble in common organic solvents by crosslinking of said ladder polymers.
A Group Transfer Polymerization process resulting in the formation of ladder polymers comprising contacting, under polymerizing conditions in the presence of a solvent, at high dilution, one or more difunctional monomers or mixtures of difunctional monomers with a difunctional Ti--, Zr--or Hi-containing initiator, and wherein the monomers are added to the initiator at a rate that is slow enough so that the said ladder polymers are not caused to be insoluble in common organic solvents by crosslinking of said ladder polymer.
Dependencies are inferred from the claim text.