JPS56122879A - Production of tacky composition - Google Patents

Production of tacky composition

Info

Publication number
JPS56122879A
JPS56122879A JP2623280A JP2623280A JPS56122879A JP S56122879 A JPS56122879 A JP S56122879A JP 2623280 A JP2623280 A JP 2623280A JP 2623280 A JP2623280 A JP 2623280A JP S56122879 A JPS56122879 A JP S56122879A
Authority
JP
Japan
Prior art keywords
tacky
mixt
compsn
mixing
butyl rubber
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.)
Pending
Application number
JP2623280A
Other languages
Japanese (ja)
Inventor
Katsuhiko Kodama
Kimio Mori
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.)
Hayakawa Rubber Co Ltd
Original Assignee
Hayakawa Rubber Co Ltd
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 Hayakawa Rubber Co Ltd filed Critical Hayakawa Rubber Co Ltd
Priority to JP2623280A priority Critical patent/JPS56122879A/en
Publication of JPS56122879A publication Critical patent/JPS56122879A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To form easily a tacky compsn. in a short time, by a method wherein a thermoplastic polyolefin resin and other additives are added to a powder of a vulcanized butyl rubber, and the mixt. is subjected to a mechanical shearing and mixing at high temperature.
CONSTITUTION: 100pts.wt. vulcanized butyl rubber powder (A) (having a particle size of 5 mesh or below), 1W6pts.wt. peptizer (B) (e.g. zinc salt of pentachlorothiophenol), 20W100pts.wt. flexibilizing type plasticizer (C) (e.g. paraffinic process oil), 5W50pts.wt. thermoplastic polyolefin resin (D) (e.g. polyethylene having a melt index of 7 or below) and 3W50pts.wt. tackifier (E) (e.g. chroman- indene resin) are mixed together. Then the mixt. is extruded at 190W250°C by using an extruder with L/D>20 (wherein L is a length of screw and D is a diameter) and a compression ratio >2 to carry out a mechanical shearing and mixing, whereby the desired tacky compsn. is obtd.
COPYRIGHT: (C)1981,JPO&Japio
JP2623280A 1980-03-03 1980-03-03 Production of tacky composition Pending JPS56122879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2623280A JPS56122879A (en) 1980-03-03 1980-03-03 Production of tacky composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2623280A JPS56122879A (en) 1980-03-03 1980-03-03 Production of tacky composition

Publications (1)

Publication Number Publication Date
JPS56122879A true JPS56122879A (en) 1981-09-26

Family

ID=12187583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2623280A Pending JPS56122879A (en) 1980-03-03 1980-03-03 Production of tacky composition

Country Status (1)

Country Link
JP (1) JPS56122879A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833621A (en) * 1971-09-06 1973-05-11
JPS5031280A (en) * 1973-07-21 1975-03-27
JPS5086538A (en) * 1973-12-03 1975-07-11

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833621A (en) * 1971-09-06 1973-05-11
JPS5031280A (en) * 1973-07-21 1975-03-27
JPS5086538A (en) * 1973-12-03 1975-07-11

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