Thiol group-containing polymer and curable composition thereof
AssigneeToray Fine Chemicals Co., Ltd.
InventorsKoki Echigoya, Yukiko Hamada, Kazunori Matsumoto
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Abstract
A thiol group-containing polymer is represented by HS—(R—Sr)n—R—SH, wherein R is an organic group including a —O—CH2—O— bond and/or a branched alkylene group, n is an integer of from 1 to 200, r is an integer of from 1 to 5, and the average value of r is 1.1 or more and 1.8 or less. A curable composition using the thiol group-containing polymer can be used in sealants, adhesives, paints and the like, which require properties such as a low specific gravity, a low viscosity and a low glass transition temperature.
Claims18
A curable composition comprising a 1) thiol group-containing polymer represented by:
- HS—(R—Sr)n—R—SH
- wherein
- R is an organic group including a —O—CH2—O— bond and/or a branched alkylene group, n is an integer of 1 to 200, r is an integer of 1 to 5, and an average value of r is 1.1 or more and lower than 1.8, and
- the thiol group-containing polymer is a liquid at room temperature, and 2) an oxidizing agent.
A curable composition comprising a 1) thiol group-containing polymer represented by:
- HS—(R—Sr)n—R—SH
- wherein
- R is an organic group including a —O—CH2—O— bond and/or a branched alkylene group, n is an integer of 1 to 200, r is an integer of 1 to 5, and an average value of r is 1.1 or more and lower than 1.8, and
- the thiol group-containing polymer is a liquid at room temperature, and 2) a compound containing two or more isocyanate groups in a molecule.
A curable composition comprising a 1) thiol group-containing polymer represented by:
- HS—(R—Sr)n—R—SH
- wherein
- R is an organic group including a —O—CH2—O— bond and/or a branched alkylene group, n is an integer of 1 to 200, r is an integer of 1 to 5, and an average value of r is 1.1 or more and lower than 1.8, and
- the thiol group-containing polymer is a liquid at room temperature, 2) an epoxy resin containing two or more glycidyl groups in a molecule, and 3) an amine.
Dependencies are inferred from the claim text.