Title:
硬化性樹脂組成物
Document Type and Number:
Japanese Patent JP6950818
Kind Code:
B2
Abstract:
The purpose of the present invention is to provide a curable resin composition which has excellent weatherability, cured product properties and workability. This curable resin composition contains: a vinyl polymer (A) in which there are reactive silyl groups on sidechains and ends of molecular chains, the molecular chains have a repeating unit formed from a polymerizable vinyl monomer, and the total number of reactive silyl groups per one molecule is greater than 1 on average, the number of reactive silyl groups on the ends or sidechains is greater than 0.5, the weight average molecular weight is 30,000-110,000, the number average molecular weight is 9,000-40,000, and the glass transition temperature is -100°C to -10°C; a vinyl polymer (B) in which there are no reactive silyl groups, the molecular chains have a repeating unit formed from polymerizable vinyl monomers, and the weight average molecular weight is less than or equal to 20,000; and a curing catalyst (C), wherein the vinyl polymer (A) includes a vinyl polymer (a) which comprises a molecular chain having a repeating unit formed from a polymerizable vinyl monomer, and which has a group represented by *-S-L1X1 at the end of the molecular chain (S: a sulfur atom, L1: a bivalent linking group, X1: a reactive silyl group, *: bonding position).
Inventors:
Mamoru Tsuruta
Noritaka Yuki
Toshiyuki Ueno
Shunta Matsuda
Noritaka Yuki
Toshiyuki Ueno
Shunta Matsuda
Application Number:
JP2020510373A
Publication Date:
October 13, 2021
Filing Date:
February 08, 2019
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
C08L33/06; C08F220/18; C08F230/08
Domestic Patent References:
| JP20081833A | ||||
| JP2015209525A | ||||
| JP2004292620A | ||||
| JP2006161010A |
Foreign References:
| WO2014175358A1 |
Attorney, Agent or Firm:
Hideaki Ito
Fumio Mitsuhashi
Youichiro Machida
Muto Michiyo
Fumio Mitsuhashi
Youichiro Machida
Muto Michiyo