Patent US5542638A successfully refreshed from Google Patents.
Patent EP0124347A1 successfully refreshed from Google Patents.
EP0124347A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for modifying the surface of polymer materials
Assignee: NOF Corp
•
Filing: 1984-04-25
•
Granted: —
•
Expires: 2004-04-25
Abstract
Abstract A block copolymer consisting of a hydrophilic polymer portion and a polymer portion having a compatibility with a polymer material can be easily synthesized in the presence of a polymeric peroxide or a polyazo compound, and can modify easily and permanently the surface of the polymer material.
Inventors
- 👤 Hiroshi Ohmura
- 👤 Yoshihiro Oshibe
- 👤 Masaharu Nakayama
- 👤 Takashi Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 19:26
CPC Classifications
C; C08; C08L; C08L53/00; C08F; C08F293/00; C08L101/00; C08L23/00; C08L23/02; C08L2555/00; C08L2555/40; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/18; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31536
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
216 words
A method for modifying the surface of a polymer material, comprising adding a block copolymer consisting of a polymer portion compatible with the polymer material and a hydrophilic polymer portion to the polymer material, said block copolymer having been produced through the following first and second steps, in the first step, either a vinyl monomer which forms a hydrophilic polymer, or a vinyl monomer which forms a polymer compatible with the polymer material, is polymerized in the presence of a polymeric peroxide or a polyazo compound as a polymerization initiator to produce a peroxy bond- or azo bond-containing polymer, and in the second step, either a vinyl monomer which forms a hydrophilic polymer, or a vinyl monomer which forms a polymer compatible with the polymer material, both the vinyl monomers being used in such a manner that, when a hydrophilic polymer is produced in the first step, a vinyl monomer which forms a polymer compatible with the polymer material is used in the second step, and when a polymer compatible with the polymer material is produced in the first step, a vinyl monomer which forms a hydrophilic polymer is used in the second step, is polymerized in the presence of a polymerization initiator of the peroxy bond- or azo bond-containing polymer obtained in the first step.
Claim 2
Independent Claim
216 words
A method for modifying the surface of a polymer material, comprising adding a block copolymer consisting of a polymer portion compatible with the polymer material and a hydrophilic polymer portion to the polymer material, said block copolymer having been produced through the following first and second steps, in the first step, either a vinyl monomer which forms a hydrophilic polymer, or a vinyl monomer which forms a polymer compatible with the polymer material, is polymerized in the presence of a polymeric peroxide or a polyazo compound as a polymerization initiator to produce a peroxy bond- or azo bond-containing polymer, and in the second step, either a vinyl monomer which forms a hydrophilic polymer, or a vinyl monomer which forms a polymer compatible with the polymer material, both the vinyl monomers being used in such a manner that, when a hydrophilic polymer is produced in the first step, a vinyl monomer which forms a polymer compatible with the polymer material is used in the second step, and when a polymer compatible with the polymer material is produced in the first step, a vinyl monomer which forms a hydrophilic polymer is used in the second step, is polymerized in the presence of a polymerization initiator of the peroxy bond- or azo bond-containing polymer obtained in the first step.
Claim 3
Dependent Claim
15 words
A method according to claim 1, wherein said polymer material is a synthetic polymer material.
Claim 4
Dependent Claim
15 words
A method according to claim 1, wherein said polymer material is a natural polymer material.
Claim 5
Dependent Claim
16 words
A method according to claim 2, wherein said synthetic polymer material is resin, fiber or rubber.
Claim 6
Dependent Claim
16 words
A method according to claim 3, wherein said natural polymer material is resin, fiber or rubber.
Claim 7
Dependent Claim
131 words
A method according to claim 2 or 4, wherein said synthetic polymer material is polyacrylic resin, polyvinyl chloride resin, polyvinylidene chloride resin, polystyrene resin, ABS resin, styrene-butadiene resin, AS resin, polyethylene resin, polypropylene resin, chlorinated polyethylene resin, chlorinated polypropylene resin, polyamide resin, polyester resin, epoxy resin, polyphenylene oxide resin, polycarbonate resin, modified polypropylene oxide resin, polyurethane resin, nitrocellulose resin, cellulose acetate resin, ethylcellulose resin, cellulose acetate butyrate resin, cellulose acetate propionate resin, ethylene-vinyl acetate resin, urea resin, melamine resin, polyvinyl ether resin, petroleum resin, coumarone resin, indene resin, phenolic resin, acetal resin, acrylonitrile-butadiene rubber, chloroprene rubber, acrylic rubber, butyl rubber, polybutadiene rubber, polyisoprene rubber, ethylene-propylene-diene rubber, polyacrylic fiber, nylon fiber, polyester fiber, polyvinyl alcohol fiber, polyvinyl chloride fiber, polyvinylidene chloride fiber, polyethylene fiber, polypropylene fiber, polyurethane fiber or polyvinyl acetal fiber.
Claim 8
Dependent Claim
22 words
A method according to claim 3 or 5, wherein said natural polymer material is rosin, natural rubber, cotton, linen, wool or silk.
Claim 9
Dependent Claim
320 words
A method according to claim 1, wherein said polymeric peroxide is at least one member selected from the group consisting of a polymeric peroxide having the following general formula (I) wherein R 1 represents an alkylene or substituted alkylene group having 1-18 carbon atoms, a cycloalkylene or substituted cycloalkylene group having 3-15 carbon atoms, a phenylene group or a substituted phenylene group having 7-18 carbon atoms; R 2 represents an alkylene or substituted alkylene group having 2-10 carbon atoms, R 3 I -(CH-CH 2 O) m R 4 - (wherein R 3 represents a hydrogen atom or a methyl group, R 4 represents an alkylene or substituted alkylene group having 2-10 carbon atoms, and m is an and n is an integer of 2-20, a polymeric peroxide having the following general formula (II) wherein R 1 and n have the same meanings as in the general formula (I); and R 5 represents an ethylene group, a phenylene group or an acetylene group, a polymeric peroxide having the following general formula (III) wherein R 1 and n have the same meanings as in the general formula (I), a polymeric peroxide having the following general formula (IV) wherein R 1 and n have the same meanings as in the general formula (I), a polymeric peroxide having the following general formula (V) wherein R l and n have the same meanings as in the general formula (I), a polymeric peroxide having the following general formula (VI) wherein R 1 and n have the same meaning as in the general formula (I); R 5 has the same meaning as in the general formula (II); R 6 and R 7 represent a hydrogen atom or a methyl group; and p is an integer of 1-100, and a polymeric peroxide having the following general formula (VII) wherein X represents a hydrogen atom, a methyl group or a chlorine atom; and q is an integer of 2-50.
Claim 10
Dependent Claim
35 words
A method according to claim 1, wherein said polyazo compound is at least one member selected from the group consisting of and wherein n is an integer of 2-20, and p is an integer of
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.