Title:
HOT-MELT TYPE SEALING AGENT FOR LIGHTING INSTRUMENT
Document Type and Number:
Japanese Patent JPS60120775
Kind Code:
A
Abstract:
PURPOSE: To provide the titled sealing agent which has excellent weather resistance and physical properties at high and low temp. or in a wetted state and is inexpensive, containing an ethylene/propylene copolymer rubber and atactive polypropylene as main components.
CONSTITUTION: 15W40wt% ethylen/propylene copolymer rubber (A) (which may be a three-component rubber contg. further dicyclopentadiene), 25W40wt% atactic polypropylene (B) and 20W60wt% other resin components (C) (e.g. tackifier such as C-9 cut tackifier, thermoplastic elastomer for extender, such as polyisoprene rubber) are mixed together. The resulting hot-melt type sealing agent is suitable for use in sealing automobile lighting instruments in particular.
Inventors:
INABA KEIICHI
YAMAZAKI KAZUHIRO
NAGANO JIYUUICHI
YAMAZAKI KAZUHIRO
NAGANO JIYUUICHI
Application Number:
JP22945983A
Publication Date:
June 28, 1985
Filing Date:
December 05, 1983
Export Citation:
Assignee:
KOITO MFG CO LTD
KEMISUKU KAGAKU KOGYOSHO KK
KEMISUKU KAGAKU KOGYOSHO KK
International Classes:
C09K3/10; C08L7/00; C08L21/00; C08L23/00; C08L23/12; C08L23/16; C08L51/00; C08L51/02; C08L77/00; C08L101/00; C09J123/16; F21S8/10; F21V17/00; (IPC1-7): C08L23/12; C08L23/16; C09J3/14; C09K3/10; F21M7/00
Domestic Patent References:
| JP47046766A |
Attorney, Agent or Firm:
Toru Hoshino