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1. 发明专利

JPH0195106A MANUFACTURE OF CHLORINATED VINYL CHLORIDE RESIN 失效
公开(公告)号：JPH0195106A
公开(公告)日：1989-04-13
申请号：JP25305087
申请日：1987-10-07
申请人： KANEGAFUCHI CHEMICAL IND
发明人： TSUBOKURA YOSHITERU , KUBOTA TAKAYOSHI , IKEDA MUNEHIRO , SHIMIZU TAKESHI
IPC分类号： C08F8/22 , C08F8/20 , C08F14/00 , C08F14/06 , C08K5/09 , C08L27/22 , C08L27/24
摘要： PURPOSE:To obtain a chlorinated vinyl chloride resin remarkably improved in thermal discoloration, by chlorinating a vinyl chloride resin while irradiating with light in the presence of water and formic acid or oxalic aid. CONSTITUTION:A small amount of formic acid, oxalic acid or a mixture thereof is added to a suspension comprising a vinyl chloride resin as ray material and water in a corrosion-resistant reaction vessel. After the air in the system is replaced with an inert gas, chlorine gas is blown into the vessel with sufficient stirring to carry out chlorination by irradiating with light. It is preferred that the concentration of formic acid and/or oxalic acid in the suspension is in the range of 0.01-2wt.% based on the total feed on the vinyl chloride and water. The chlorination is carried out at 30-80 deg.C under atmospheric pressure or slightly elevated pressure. The progress of the chlorination is monitored by measuring the concentration of a by-product, i.e., HCl, which corresponds to the degree of addition of chlorine, and when the aimed chlorination is attained, the irradiation with light and the supply of chlorine are stopped to complete the reaction.

2. 发明专利

JPS644637A VINYL CHLORIDE RESIN COMPOSITION 失效
公开(公告)号：JPS644637A
公开(公告)日：1989-01-09
申请号：JP15923087
申请日：1987-06-25
申请人： KANEGAFUCHI CHEMICAL IND
发明人： SHIMIZU TAKESHI , IKEDA MUNEHIRO
IPC分类号： C08L27/06 , C08L51/00 , C08L51/04
摘要： PURPOSE:To make it possible to form a vinyl chloride resin composition excellent in heat distortion resistance, impact resistance as well as processing stability and heat stability, by blending a specific rubber containing a graft copolymer with a specific vinyl chloride copolymer. CONSTITUTION:The two following components (A) and (B) are blended in this vinyl chloride resin composition. (A): a graft copolymer obtained by copolymerizing 15-80pts.wt. rubbery polymer comprising a polybutadiene and/or a copolymer composed of 50wt.% or more butadiene at 50wt.% or less vinyl monomer copolymerizable with butadiene, and 85-20pts.wt. monomer mixture of one or more monomers selected from the group comprising an alkyl acrylate, an alkyl methacrylate and a vinyl cyanide compound with an aromatic vinyl compound. (B): a vinyl chloride copolymer obtained by copolymerizing vinyl chloride with a cyclic olefin and/or a 4-8C internal olefin in an amount of 1-10wt.% based on the total feed monomer. The components (A) and (B) can be mixed in any proportion according to the purpose.

3. 发明专利

JPH0534363B2 失效
公开(公告)号：JPH0534363B2
公开(公告)日：1993-05-21
申请号：JP25305087
申请日：1987-10-07
申请人： KANEGAFUCHI CHEMICAL IND
发明人： TSUBOKURA YOSHITERU , KUBOTA TAKANORI , IKEDA MUNEHIRO , SHIMIZU TAKESHI
IPC分类号： C08F8/22 , C08F8/20 , C08F14/00 , C08F14/06 , C08K5/09 , C08L27/22 , C08L27/24

4. 发明专利

JPH04114013A CHLORINATED VINYL CHLORIDE RESIN HAVING EXCELLENT SOLUBILITY 失效
公开(公告)号：JPH04114013A
公开(公告)日：1992-04-15
申请号：JP23604090
申请日：1990-09-05
申请人： KANEGAFUCHI CHEMICAL IND
发明人： OKUHARA TOSHIO , IKEDA MUNEHIRO , TACHIBANA HIROMITSU
IPC分类号： C08F214/06 , C08F2/18 , C08F2/20 , C08F8/20 , C08F8/22
摘要： PURPOSE:To obtain the subject resin having excellent solubility in organic solvent, giving a transparent solution having low viscosity and suitable as paint, ink base, adhesive, etc., by chlorinating a copolymer composed of vinyl chloride and more than a specific amount of allyl chloride. CONSTITUTION:The objective resin is produced by chlorinating a copolymer composed of vinyl chloride and allyl chloride and having an allyl chloride content of >=4wt.%, preferably 4-20wt.%. The copolymer is produced preferably by a suspension polymerization process using a polyethylene oxide as a dispersing agent.

5. 发明专利

JPH03285933A FIRE RETARDANT RESIN COMPOSITION FOR INJECTION MOLDING 失效
公开(公告)号：JPH03285933A
公开(公告)日：1991-12-17
申请号：JP8702390
申请日：1990-03-30
申请人： KANEGAFUCHI CHEMICAL IND
发明人： MISHIMA YASUHIRO , IKEDA MUNEHIRO , HOSOI HIDEKI
IPC分类号： C08L25/08 , C08L25/16 , C08L27/24 , C08L33/08 , C08L33/18 , C08L33/20 , C08L51/00 , C08L51/04 , C08L57/00
摘要： PURPOSE:To obtain the subject composition having excellent impact resistance and processability, etc., by mixing a fire-retardant resin composition with a specific copolymer. CONSTITUTION:(A) (i) 15-80 pts.wt. copolymer composed of 65-85wt.% alpha- methylstyren monomer unit and 15-35wt.% vinyl cyanide monomer unit and having 0.2-0.5dl/g reduced viscosity of methyl ethyl ketone-soluble part is mixed with (ii) 5-40 pts.wt. graft copolymer derived from polymerization of 40-90 pts.wt. rubbery polymer and 10-60 pts.wt. monomer mixture composed of 10-90wt.% vinyl cyanide monomer and 10-90wt.% aromatic vinyl monomer, etc., (iii) 20-70 pts.wt. post-chlorinated vinyl chloride-based resin containing 58-65wt.% chlorine derived from chlorination of a vinyl chloride resin having 400-800 degree of polymerization and (iv) 0-65 pts.wt. said vinyl chloride resin to obtain a fireretardant resin composition. Then, 100 pts.wt. the component (A) is mixed with (B) 0.5-10 pts.wt. copolymer composed of 5-40wt.% vinyl cyanide monomer unit, 30-9wt.% alkyl acrylate monomer unit and 0-65wt.% other vinyl monomer copolymerizable with said monomers to afford the aimed composition.

6. 发明专利

JPS6487650A VINYL CHLORIDE POLYMER MATERIAL RESISTANT TO GAMMA-RAY 失效
公开(公告)号：JPS6487650A
公开(公告)日：1989-03-31
申请号：JP24509487
申请日：1987-09-28
申请人： KANEGAFUCHI CHEMICAL IND
发明人： YOSHIDA CHIAKI , IKEDA MUNEHIRO , SHIMIZU TAKESHI
IPC分类号： C08L27/06
摘要： PURPOSE:To provide a gamma-ray resistant vinyl chloride polymer material composed mainly of a vinyl chloride copolymer produced by copolymerizing a specific amount of an alpha-olefin and having especially high resistance to discoloration with gamma-ray irradiation. CONSTITUTION:The objective gamma-ray resistant vinyl chloride polymer material is composed mainly of a copolymer produced e.g. by suspension polymerization of 100pts.wt. of vinyl chloride with 0.5-10pts.wt. of an alpha-olefin (preferably 4-30C alpha-olefin) in the presence of a suspension agent (e.g. methylcellulose), an initiator (e.g. dioctyl peroxy dicarbonate) and other additives in an aqueous medium. The material may be added with 5-80pts.wt. (based on 100pts.wt. of said polymer) of a plasticizer (e.g. dioctyl phthalate), 2-15pts.wt. of a stabilizer (e.g. epoxidized soybean oil or zinc stearate) and other additives.

7. 发明专利

JPH04185620A CHLORINATED VINYL CHLORIDE RESIN EXCELLENT IN SOLUBILITY 失效
公开(公告)号：JPH04185620A
公开(公告)日：1992-07-02
申请号：JP31984190
申请日：1990-11-21
申请人： KANEGAFUCHI CHEMICAL IND
发明人： OKUHARA TOSHIO , IKEDA MUNEHIRO , TACHIBANA HIROMITSU
IPC分类号： C08F214/06 , C08F8/20 , C08F8/22
摘要： PURPOSE:To obtain the title resin having excellent solubility in an org. solvent and giving a transparent low-viscosity soln. when dissolved in the solvent by chlorinating a vinyl chloride-allyl glyciyl ether copolymer contg. a specified amt. of the ether. CONSTITUTION:A vinyl chloride-allyl glycidyl ether copolymer contg. 3wt.% or higher said ether (e.g. copolymer obtd. by supplying water, a dispersant, and a polymn. initiator into a polymn. vessel, degassing the resulting mixture, supplying the ether, forcing vinyl chloride into the vessel, and copolymerizing vinyl chloride with the ether in suspension) is chlorinated to give a chlorinated vinyl chloride resin, which is excellent in solubility in an org. solvent and gives a transparent low-viscosity soln. when dissolved in the solvent. The chlorination is carried out, e.g. by introducing PVC and an aq. medium into a chlorination reactor equipped with a UV irradiationapparatus, flowing chlorine into the reactor, and irradiating the reactants with UV rays.

8. 发明专利

JPH04185611A CHLORINATED VINYL CHLORIDE RESIN EXCELLENT IN SOLUBILITY 失效
公开(公告)号：JPH04185611A
公开(公告)日：1992-07-02
申请号：JP31984290
申请日：1990-11-21
申请人： KANEGAFUCHI CHEMICAL IND
发明人： OKUHARA TOSHIO , IKEDA MUNEHIRO , TACHIBANA HIROMITSU
IPC分类号： C08L27/24 , C08F8/20 , C09D127/04 , C09D127/24
摘要： PURPOSE:To obtain a chlorinated vinyl chloride resin which is soluble in a high concn. in many solvents to give a clear transparent soln. with low viscosity and is suitable for a coating material, an adhesive, etc., by chlorinating a vinyl chloride-vinyl acetate copolymer. CONSTITUTION:A vinyl chloride-vinyl acetate copolymer (contg. 5wt.% or higher, pref. 5-25wt.%, vinyl acetate) is chlorinated to give a chlorinated vinyl chloride resin (pref. contg. 60-70wt.% chlorine), which is excellent in solubility.

9. 发明专利

JPH04106110A PRODUCTION OF CHLORINATED VINYL CHLORIDE RESIN 失效
公开(公告)号：JPH04106110A
公开(公告)日：1992-04-08
申请号：JP22548090
申请日：1990-08-27
申请人： KANEGAFUCHI CHEMICAL IND
发明人： IKEDA MUNEHIRO , OKUHARA TOSHIO , TACHIBANA HIROMITSU
IPC分类号： C08F14/06 , C08F2/08 , C08F2/18 , C08F2/20 , C08F4/42 , C08F8/20 , C08F14/00
摘要： PURPOSE:To produce the title resin excellent in heat stability and transparency by photochlorinating in an aqueous medium a polymer prepared by polymerizing a vinyl chloride monomer in the presence of a specified dispersant in an aqueous medium by using an oil-soluble polymerization initiator. CONSTITUTION:A chlorinated vinyl chloride resin is produced by polymerizing 100 pts.wt. vinyl chloride monomer in the presence of 0.01-2.0 pts.wt. dispersant comprising a polyethylene oxide of an average molecular weight of 50000-4800000 in an aqueous medium by using an oil-soluble polymerization initiator (e.g. t-butyl peroxyneodecanoate) and photochlorinating the obtained vinyl chloride resin in an aqueous medium. Because the obtained resin is very excellent in heat stability and transparency, it is suitable for uses requiring high heat stability and transparency.

10. 发明专利

JPH03190947A FLAME-RESISTANT RESIN COMPOSITION FOR INJECTION MOLDING 失效
公开(公告)号：JPH03190947A
公开(公告)日：1991-08-20
申请号：JP32867489
申请日：1989-12-19
申请人： KANEGAFUCHI CHEMICAL IND
发明人： MISHIMA YASUHIRO , IKEDA MUNEHIRO , HOSOI HIDEKI
IPC分类号： B29C45/00 , C08J5/00 , C08L25/00 , C08L25/04 , C08L27/00 , C08L27/06 , C08L67/00
摘要： PURPOSE:To provide the subject resin composition having excellent processability and impact strength by compounding a flame-resistant resin comprising a styrenic resin and a vinyl chloride resin with a modifying agent comprising a polyester elastomer in a specific ratio. CONSTITUTION:The objective resin composition contains (A) 100 pts.wt. of a flame-resistant resin comprising 30-80wt.% of a styrenic resin containing a methyl ethyl ketone-soluble portion having a reduced viscosity of 0.20-0.55dl/g (N,N-dimethylformaldehyde solution, 30 deg.C and C=0.3g/dl) and 20-70wt.% of a vinyl chloride resin having an average polymerization degree of 400-800 and (B) 0.1-10 pts.wt. of a modifying agent comprising a polyester elastomer having a melting point of

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