Fumarate derivative, method for producing the same
申请人:——
公开号:US20030060563A1
公开(公告)日:2003-03-27
This invention is to provide a polymerizable composition having excellent curability and surface hardness, and a cured product thereof.
A novel fumarate derivative having two or more fumarate groups within one molecule and ensuring high copolymerizability with the terminal alkenyloxy group, a method for producing the derivative, a polymerizable composition containing the derivative, and a cured product thereof are provided.
Fluorine-containing copolymer useful as paint vehicle
申请人:CENTRAL GLASS COMPANY, LIMITED
公开号:EP0544233A1
公开(公告)日:1993-06-02
The invention provides a copolymer suitable for use as a paint vehicle, which includes, as essential components, 10 to 80 mol% of a fluoroolefin, 0 to 80 mol% of a hydroxyl-containing polymerizable unsaturated monomer, 3 to 80 mol % of an allyloxy group-containing compound, and 2 to 70 mol% of an organosilicon compound having a polymerizable unsaturated bond and a group hydrolyzable to a hydroxyl. The copolymer is soluble in various organic solvents and sufficiently low in molecular weight so as to substantially reduce the amount of solvent. The cured copolymer is excellent in weatherability, water resistance, chemical resistance and abrasion resistance.
Disclosed is a two-pack fluorine coating composition which comprises a combination of: a base component comprising a fluorinated copolymer having a hydroxyl group which can be dissolved in a low-polar weak solvent even at a low temperature and; a curing agent comprising a polyisocyanate compound. Specifically disclosed is a fluorine coating composition comprising:; (A) a base component which comprises a fluorinated copolymer of a fluoroolefin and a monomer having a double bond copolymerizable with the fluoroolefin and which has a fluorine content of 10 mass% or more, wherein 5 to 30 mol% of the monomer has a hydroxyl group and 10 to 50 mol% of the monomer has a branched alkyl group having 3 or more carbon atoms; and (B) a curing agent comprising a polyisocyanate compound which is produced by the reaction between at least one diisocyanate selected from an aliphatic diisocyanate and a alicyclic diisocyanate and a monoalcohol having 1 to 20 carbon atoms and which has an [(allophanate group)/(isocyanurate group)] ratio of 90/10 to 81/19 by mole.
To provide a photocurable fluorinated polymer composition which has a high curing rate, shows little shrinkage before and after photocuring and requires no post treatment such as heat treatment after photocuring and whereby it is possible to obtain a cured resin excellent in heat resistance and weather resistance. According to the photocurable fluorinated polymer composition comprising a fluorinated polymer (A) containing polymerized units derived from a fluoroolefin and polymerized units derived from an unsaturated monomer having an oxetanyl group or a substituted oxetanyl group, and a photoreaction initiator (B), of the present invention, it is possible to provide a photocurable fluorinated polymer composition which has a high curing rate, shows little shrinkage before and after photocuring and requires no post treatment such as heat treatment after photocuring and whereby it is possible to obtain a cured resin excellent in heat resistance and weather resistance.
PROCESS FOR PRODUCTION OF FLUOROPOLYMER THAT CONTAINS HYDROLYZABLE SILYL GROUPS, AND COMPOSITION CONTAINING FLUOROPOLYMER THAT CONTAINS HYDROLYZABLE SILYL GROUPS
申请人:Asahi Glass Company, Limited
公开号:EP2524931A1
公开(公告)日:2012-11-21
The present invention has an object to provide a process for producing a hydrolyzable silyl group-containing fluoropolymer which is excellent in storage stability and has a sufficient pot life. At the time of producing a hydrolyzable silyl group-containing fluoropolymer by reacting an isocyanate group of an isocyanate group-containing alkoxysilane to a hydroxy group of a hydroxy group-containing fluoropolymer, the reaction is carried out in the presence a compound containing a specific metal atom at a certain concentration.