Invention Grant
- Patent Title: Addition-curable liquid silicone rubber composition for LED headlamps, and LED headlamp
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Application No.: US17283898Application Date: 2019-09-19
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Publication No.: US12077637B2Publication Date: 2024-09-03
- Inventor: Shigeki Shudo , Mikio Iino
- Applicant: SHIN-ETSU CHEMICAL CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: SHIN-ETSU CHEMICAL CO., LTD.
- Current Assignee: SHIN-ETSU CHEMICAL CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP 18194807 2018.10.16
- International Application: PCT/JP2019/036664 2019.09.19
- International Announcement: WO2020/080028A 2020.04.23
- Date entered country: 2021-04-08
- Main IPC: C08L83/04
- IPC: C08L83/04 ; C08G77/00 ; C08G77/08 ; C08G77/12 ; C08G77/20 ; C08K5/3492 ; F21S41/141 ; F21S45/10
Abstract:
An addition-curable liquid silicone rubber composition for LED headlamps, which contains:
(A) (A-1) an alkenyl group-containing liquid organopolysiloxane, and
(A-2) an alkenyl group-containing raw rubber-state organopolysiloxane;
(B) a silicone resin which contains an alkenyl group, while being composed of a unit that is selected from among an R23SiO1/2 unit (M unit), an SiO4/2 unit (Q unit), an R22SiO2/2 unit (D unit) and R2SiO3/2 unit (T unit);
(C) an organohydrogen polysiloxane;
(D) a platinum group metal catalyst; and
(E) triallyl isocyanurate.
(A) (A-1) an alkenyl group-containing liquid organopolysiloxane, and
(A-2) an alkenyl group-containing raw rubber-state organopolysiloxane;
(B) a silicone resin which contains an alkenyl group, while being composed of a unit that is selected from among an R23SiO1/2 unit (M unit), an SiO4/2 unit (Q unit), an R22SiO2/2 unit (D unit) and R2SiO3/2 unit (T unit);
(C) an organohydrogen polysiloxane;
(D) a platinum group metal catalyst; and
(E) triallyl isocyanurate.
Public/Granted literature
- US20210355285A1 ADDITION-CURABLE LIQUID SILICONE RUBBER COMPOSITION FOR LED HEADLAMPS, AND LED HEADLAMP Public/Granted day:2021-11-18
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