JPS5620038A - Production of sanitary rubber article - Google Patents

Production of sanitary rubber article

Info

Publication number
JPS5620038A
JPS5620038A JP9562979A JP9562979A JPS5620038A JP S5620038 A JPS5620038 A JP S5620038A JP 9562979 A JP9562979 A JP 9562979A JP 9562979 A JP9562979 A JP 9562979A JP S5620038 A JPS5620038 A JP S5620038A
Authority
JP
Japan
Prior art keywords
rubber
divinylbenzene
organic peroxide
production
copolymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9562979A
Other languages
Japanese (ja)
Other versions
JPS5915144B2 (en
Inventor
Denpei Sudo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DAIKYO GOMME SEIKOU KK
DAIKYO GOMU SEIKO KK
Original Assignee
DAIKYO GOMME SEIKOU KK
DAIKYO GOMU SEIKO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DAIKYO GOMME SEIKOU KK, DAIKYO GOMU SEIKO KK filed Critical DAIKYO GOMME SEIKOU KK
Priority to JP9562979A priority Critical patent/JPS5915144B2/en
Publication of JPS5620038A publication Critical patent/JPS5620038A/en
Publication of JPS5915144B2 publication Critical patent/JPS5915144B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To produce sanitary rubber articles having excellent physical properties and chemical properties, by co-crosslinking a specific polymer and butyl rubber combined with divinylbenzene with the aid of an organic peroxide.
CONSTITUTION: There are mixed 30W75wt% of (A) a rubber prepared by combining divinylbenzene with a copolymer of isoprene rubber and isobutylene rubber, 10W30wt% of (B) at least one polymer selected from polybutadiene, styrene/ butadiene copolymer and PE and (C) white carbon having a particle diameter of 0.01W3μ, a specific surface area of 50W200m2/g and a pH of 6.0W10.5. The resulting mixture is co-crosslinked in the presence of an organic peroxide such as dicumyl peroxide or 2,5-dimethyl-2,5-di(t-butylperoxy)hexane.
EFFECT: It is possible to produce sanitary rubber articles having excellent elasticity and a low gas permeability and being useful as stoppers or seals of containers for medicines, foods, etc.
COPYRIGHT: (C)1981,JPO&Japio
JP9562979A 1979-07-26 1979-07-26 Manufacturing method for sanitary rubber products Expired JPS5915144B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9562979A JPS5915144B2 (en) 1979-07-26 1979-07-26 Manufacturing method for sanitary rubber products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9562979A JPS5915144B2 (en) 1979-07-26 1979-07-26 Manufacturing method for sanitary rubber products

Publications (2)

Publication Number Publication Date
JPS5620038A true JPS5620038A (en) 1981-02-25
JPS5915144B2 JPS5915144B2 (en) 1984-04-07

Family

ID=14142806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9562979A Expired JPS5915144B2 (en) 1979-07-26 1979-07-26 Manufacturing method for sanitary rubber products

Country Status (1)

Country Link
JP (1) JPS5915144B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542612A1 (en) * 1981-10-02 1984-09-21 Terumo Corp CAP FOR MEDICAL BOTTLE
EP0754743A1 (en) * 1995-07-20 1997-01-22 Kuraray Co., Ltd. Closure and sealing element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542612A1 (en) * 1981-10-02 1984-09-21 Terumo Corp CAP FOR MEDICAL BOTTLE
EP0754743A1 (en) * 1995-07-20 1997-01-22 Kuraray Co., Ltd. Closure and sealing element

Also Published As

Publication number Publication date
JPS5915144B2 (en) 1984-04-07

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