JPS5688443A - Imparting of flame retardance to tacky unvulcanized rubber - Google Patents

Imparting of flame retardance to tacky unvulcanized rubber

Info

Publication number
JPS5688443A
JPS5688443A JP16711879A JP16711879A JPS5688443A JP S5688443 A JPS5688443 A JP S5688443A JP 16711879 A JP16711879 A JP 16711879A JP 16711879 A JP16711879 A JP 16711879A JP S5688443 A JPS5688443 A JP S5688443A
Authority
JP
Japan
Prior art keywords
graphite
unvulcanized rubber
flame retardance
rubber
added
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
JP16711879A
Other languages
Japanese (ja)
Other versions
JPS6157337B2 (en
Inventor
Taichi Zaizen
Yukio Harube
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.)
SEKAICHIYOU KK
Sekaicho Rubber Co Ltd
Original Assignee
SEKAICHIYOU KK
Sekaicho 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 SEKAICHIYOU KK, Sekaicho Rubber Co Ltd filed Critical SEKAICHIYOU KK
Priority to JP16711879A priority Critical patent/JPS5688443A/en
Publication of JPS5688443A publication Critical patent/JPS5688443A/en
Publication of JPS6157337B2 publication Critical patent/JPS6157337B2/ja
Granted legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To enhance flame retardance, by a method wherein a graphite which exhibits expansibility when heated, is added to a tacky unvulcanized rubber useful as a raw material for the production of a waterproof tape and a sealing material.
CONSTITUTION: Natural graphite having a high degree of crystallization is oxidized with various oxidizing agents or subjected to electrolytic oxidation to obtain a graphite having such a property that the graphite expands in the form of a caterpillar with heat. This expansible graphite is added to a tacky unvulcanized rubber to improve the flame retardance of the rubber without damaging various characteristics required for the tackey unvulcanized rubber. When the rubber is exposed to a fire, the added expansible graphite exhibits such a function that the graphite expands to form a heat insulating barrier which protect combustible materials.
COPYRIGHT: (C)1981,JPO&Japio
JP16711879A 1979-12-21 1979-12-21 Imparting of flame retardance to tacky unvulcanized rubber Granted JPS5688443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16711879A JPS5688443A (en) 1979-12-21 1979-12-21 Imparting of flame retardance to tacky unvulcanized rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16711879A JPS5688443A (en) 1979-12-21 1979-12-21 Imparting of flame retardance to tacky unvulcanized rubber

Publications (2)

Publication Number Publication Date
JPS5688443A true JPS5688443A (en) 1981-07-17
JPS6157337B2 JPS6157337B2 (en) 1986-12-06

Family

ID=15843764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16711879A Granted JPS5688443A (en) 1979-12-21 1979-12-21 Imparting of flame retardance to tacky unvulcanized rubber

Country Status (1)

Country Link
JP (1) JPS5688443A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003082312A (en) * 2001-09-07 2003-03-19 Asahi Rubber Kk Waterproof bonding material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553453A (en) * 1978-06-23 1980-01-11 Arai Pump Mfg Co Ltd Rubber

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553453A (en) * 1978-06-23 1980-01-11 Arai Pump Mfg Co Ltd Rubber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003082312A (en) * 2001-09-07 2003-03-19 Asahi Rubber Kk Waterproof bonding material

Also Published As

Publication number Publication date
JPS6157337B2 (en) 1986-12-06

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