Binder resin composition

Patent metadata

Field	Value
Publication number	US-10457607-B2
Application number	US-201615557579-A
Country	US
Kind code	B2
Filing date	Mar 2, 2016
Priority date	Mar 30, 2015
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A binder resin composition comprising an aliphatic polycarbonate resin represented by the formula (1):

and an end-capped aliphatic polycarbonate resin represented by the formula (2):

wherein each of X and Y, which may be identical or different, is a group having at least one functional group selected from a carboxy group, an ester group, a carbamate group, a silicate group, an isocyanate group, an ether group, an acetal group, and a halogen atom at its end; and an inorganic particle-dispersed paste composition containing the resin composition. The binder resin composition of the present invention can be used in general molded articles, optical materials such as films, fibers, optical fibers, and optical disks, thermally decomposable materials such as ceramic binders, and lost foam casting, medicinal materials such as drug capsules, additives for biodegradable resins, main components for biodegradable resins, and the like.

First claim

The invention claimed is:

1. A binder resin composition comprising an aliphatic polycarbonate resin represented by the formula (1):

wherein each of R 1 , R 2 , R 3 , and R 4 , which may be identical or different, is a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms, or an aryl group having from 6 to 20 carbon atoms; and m is an integer of from 40 to 23,000, and
an end-capped aliphatic polycarbonate resin represented by the formula (2):

wherein each of R 5 , R 6 , R 7 and R 8 , which may be identical or different, is a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms, or an aryl group having from 6 to 20 carbon atoms; each of X and Y, which may be identical or different, is a group having at least one functional group selected from a carboxy group, an ester group, a carbamate group, a silicate group, an isocyanate group, an ether group, an acetal group, and a halogen atom at its end; and n is an integer of from 40 to 23,000.

2. The binder resin composition according to claim 1 , wherein in the formula (2) each of X and Y is a group having at least one functional group selected from a carboxy group, an ester group, a carbamate group, and an isocyanate group at its end.

3. The binder resin composition according to claim 1 or 2 , wherein the aliphatic polycarbonate resin represented by the formula (1) and/or the aliphatic polycarbonate resin represented by the formula (2) is at least one member selected from the group consisting of polyethylene carbonate, polypropylene carbonate, and polybutylene carbonate.

4. A fine inorganic particle-dispersed paste composition comprising a binder resin composition as defined in claim 1 , fine inorganic particles, and a solvent.

Assignees

• Sumitomo Seika Chemicals

Inventors

• Nishioka Kiyoshi
• Suzuki Masahiro

Classifications

• C08G64/0216

  containing a chain-terminating or -crosslinking agent · CPC title

• C08G64/0208

  saturated · CPC title

• C08G18/44 Primary

  Polycarbonates · CPC title

• C08G18/10

  Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step · CPC title

• C08G18/7671

  containing only one alkylene bisphenyl group · CPC title