Fluorine-containing copolymer and curable composition containing the same

• US 5,142,011 A
• Filed: 10/29/1991
• Issued: 08/25/1992
• Est. Priority Date: 10/29/1990
• Status: Expired due to Fees

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: Shimizu, Yoshiki, Mohri, Haruhiko, Wada, Susumu, Saito, Hideya
• Primary Examiner(s): Schofer, Joseph L.
• Assistant Examiner(s): SAROFIM, NABIL F
• Application Number:
  US07/783,965
• Time in Patent Office: 301 Days
• Field of Search: 526/250, 526/247, 526/255, 526/249, 526/253, 526/254
• US Class Current: 526/249
• CPC Class Codes: C08F 214/188 with non-fluorinated vinyl ethers

Abstract

A fluorine-containing copolymer comprising: 30 to 85% by mole of structural units (a): ##STR1## 1 to 30% by mole of structural units (b): ##STR2## and 3 to 60% by mole of structural units (c): ##STR3## and a curable composition containing the same. The copolymer is excellent in compatibility with curing agents and the obtained film therefrom is excellent in appearance, gloss, durability, and the like.

Claims

1. A fluorine-containing copolymer comprising:

30 to 85% by mole of structure units having the formula (a);

##STR10## wherein X and Y are the same or different and each is a hydrogen atom or a fluorine atom, and Z is a hydrogen atom, a fluorine atom, a chlorine atom or a trifluoromethyl group,

1to 30% by mole of structure units having the formula (b);

##STR11## wherein R¹ is a linear or branched alkylene group having 1 to 10 carbon atoms and m is 0 or 1,

3to 60% by mole of structure units having the formula (c);

##STR12## wherein R² is a linear or branched aliphatic alkyl group having 1 to 10 carbon atoms or an aromatic group, n is an integer of 2 to 8 and p is 0 or 1.

2. The copolymer of claim 1, which further has not more than 50% by mole of structure units of other monomers polymerizable therewith.

3. A curable composition comprising:

a fluorine-containing copolymer comprising;

30 to 85% by mole of structure units having the formula (a);

##STR13## wherein X and Y are the same or different and each is a hydrogen atom or a fluorine atom, and Z is a hydrogen atom, a fluorine atom, a chlorine atom or a trifluoromethyl group,

1to 30% by mole of structure units having the formula (b);

##STR14## wherein R¹ is a linear or branched alkylene group having 1 to 10 carbon atoms and m is 0 or 1,

3to 60% by mole of structure units having the formula (c);

##STR15## wherein R² is a linear or branched aliphatic alkyl group having 1 to 10 carbon atoms or an aromatic group, n is an integer of 2 to 8 and p is 0 or 1 as a main component and a curing agent reactive with hydroxyl group of said fluorine-containing copolymer.