Methods of making compositions from olefin metathesis photopolymers
AssigneePolyspectra, Inc.
InventorsRaymond A. Weitekamp, Aditya Balasubramanian, Charles Friesen
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Abstract
Described herein, in part, are compositions and methods for processing and curing photopolymer composition based on olefin matathesis. The photopolymer composition comprises a latent ruthenium (Ru) complex, an initiator and at least one polymer precursor. A method for preparing a cured photopolymer composition comprises exposing the photopolymer composition to electromagnetic radiation above a threshold energy to activate the initiator and exposing the photopolymer to electromagnetic radiation below said threshold energy, thereby preparing the cured photopolymer composition.
Claims38
A method for preparing a cured composition, comprising:
- (a) providing a mixture comprising:
- (i) a latent ruthenium (Ru) complex;
- (ii) an initiator;
- and
- (iii) at least one polymer precursor;
- (b) exposing the mixture to electromagnetic radiation above a threshold energy to activate said initiator,
- wherein upon activation by the electromagnetic radiation above the threshold energy, the initiator reacts with the latent Ru complex to generate an activated Ru complex, and
- wherein the activated Ru complex reacts with the at least one polymer precursor to induce polymerization of the at least one polymer precursor to generate a plurality of curable photopolymers;
- and
- (c) exposing the plurality of curable photopolymers to electromagnetic radiation below said threshold energy,
- thereby preparing the cured composition.
A method for preparing a cured composition, comprising:
- (a) providing a mixture comprising:
- (i) a latent ruthenium (Ru) complex;
- (ii) an initiator;
- and
- (iii) at least one polymer precursor;
- (b) exposing the mixture to electromagnetic radiation having energy sufficient to activate the initiator,
- wherein upon activation by the electromagnetic radiation, the initiator reacts with the latent Ru complex to generate an activated Ru complex, and
- wherein the activated Ru complex reacts with the at least one polymer precursor to induce polymerization of the at least one polymer precursor to generate a plurality of curable photopolymers;
- and
- (c) exposing the plurality of curable photopolymers to infrared radiation, thereby preparing the cured composition.
A method for preparing a cured composition, comprising:
- (a) providing a mixture comprising:
- (i) a latent ruthenium (Ru) complex;
- (ii) an initiator;
- and
- (iii) at least one polymer precursor;
- (b) exposing the mixture to electromagnetic radiation having energy sufficient to activate the initiator,
- wherein upon activation by the electromagnetic radiation, the initiator reacts with the latent Ru complex to generate an activated Ru complex, and
- wherein the activated Ru complex reacts with the at least one polymer precursor to induce polymerization of the at least one polymer precursor to generate a plurality of curable photopolymers;
- and
- (c) exposing the plurality of curable photopolymers to microwave radiation, thereby preparing the cured composition.
Dependencies are inferred from the claim text.