Active energy ray curable hot melt silicone composition, cured product thereof, and method of producing film
US-10604653-B2 · Mar 31, 2020 · US
Removable radiation-curable silicone composition and release sheet
US11078385B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11078385-B2 |
| Application number | US-201816604758-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 3, 2018 |
| Priority date | Apr 13, 2017 |
| Publication date | Aug 3, 2021 |
| Grant date | Aug 3, 2021 |
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- Title
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Abstract
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Provided are: a removable radiation-curable silicone composition which has excellent radiation curability and gives cured objects having excellent adhesiveness to the substrates; and a release sheet. The removable radiation-curable silicone composition comprises the following components (A), (B), (C), and (D): (A) 100 parts by mass of an organopolysiloxane having an alkenyl group; (B) 1-30 parts by mass of an organopolysiloxane having a mercaptoalkyl group; (C) 0.1-5 parts by mass of a compound having a plurality of acryl groups in the molecule; and (D) 0.1-15 parts by mass of a radical polymerization initiator.
First claim
Opening claim text (preview).
The invention claimed is: 1. A releasable radiation-curable silicone composition comprising the following components (A), (B), (C), and (D): (A) 100 parts by weight of an alkenyl-containing organopolysiloxane having the average compositional formula (1): wherein R 1 which may be the same or different is a C 1 -C 10 monovalent hydrocarbon group, a≥0, b≥0, c≥0, d≥0, and 2≤a+b+c+d≤8,000, a, b, c, and d are selected such that at least two silicon-bonded alkenyl groups are present per molecule, (B) 1 to 30 parts by weight of a mercaptoalkyl-containing organopolysiloxane having the average compositional formula (2): wherein R 2 which may be the same or different is a C 1 -C 10 monovalent hydrocarbon group or mercaptoalkyl group, e≥0, f≥0, g≥0, h≥0, and 2≤e+f+g+h≤300, R 2 , e, f, g, and h are selected such that at least two silicon-bonded mercaptoalkyl groups are present per molecule, (C) 0.1 to 5 parts by weight of a compound having a plurality of acrylic groups per molecule, and (D) 0.1 to 15 parts by weight of a radical polymerization initiator, wherein component (C) is a silane compound having at least three acrylic groups per molecule or a hydrolytic condensate thereof. 2. A release sheet prepared by coating the releasable radiation-curable silicone composition of claim 1 onto a substrate and irradiating radiation to the coating for curing the coating. 3. A releasable radiation-curable silicone composition comprising the following components (A), (B), (C), and (D): (A) 100 parts by weight of an alkenyl-containing organopolysiloxane having the average compositional formula (1): wherein R 1 which may be the same or different is a C 1 -C 10 monovalent hydrocarbon group, a≥0, b≥0, c≥0, d≥0, and 2≤a+b+c+d≤8,000, R 1 , a, b, c, and d are selected such that at least two silicon-bonded alkenyl groups are present per molecule, (B) 1 to 30 parts by weight of a mercaptoalkyl-containing organopolysiloxane having the average compositional formula (2): wherein R 2 which may be the same or different is a C 1 -C 10 monovalent hydrocarbon group or mercaptoalkyl group, e≥0, f≥0, g≥0, h≥0, and 2≤e+f+g+h≤300, R 2 , e, f, g, and h are selected such that at least two silicon-bonded mercaptoalkyl groups are present per molecule, (C) 0.1 to 5 parts by weight of a silane compound having a plurality of acrylic groups per molecule, and (D) 0.1 to 15 parts by weight of a radical polymerization initiator.
Assignees
Inventors
Classifications
- C09D183/08Primary
containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen · CPC title
containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen · CPC title
with polyalcohols · CPC title
containing at least one C=C bond · CPC title
containing silicon bound to unsaturated aliphatic groups · CPC title
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- What does patent US11078385B2 cover?
- Provided are: a removable radiation-curable silicone composition which has excellent radiation curability and gives cured objects having excellent adhesiveness to the substrates; and a release sheet. The removable radiation-curable silicone composition comprises the following components (A), (B), (C), and (D): (A) 100 parts by mass of an organopolysiloxane having an alkenyl group; (B) 1-30 part…
- Who is the assignee on this patent?
- Shinetsu Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C09D183/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 03 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).