Acrylic block copolymer, resin composition and shaped article including the same, and optical component
US-2018112023-A1 · Apr 26, 2018 · US
Pellets including block copolymer and shaped articles obtained from such pellets
US12077625B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12077625-B2 |
| Application number | US-201917283191-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 4, 2019 |
| Priority date | Oct 10, 2018 |
| Publication date | Sep 3, 2024 |
| Grant date | Sep 3, 2024 |
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- Title
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Abstract
Official abstract text for this publication.
Pellets of an acrylic block copolymer (I) having a polymer block (A1) containing methacrylic acid ester units and a polymer block (B1) containing acrylic acid ester units, and an acrylic polymer (II) having 35 mass % or more methyl methacrylate units are provided. The polymer block (B1) is made of methyl acrylate units and acrylic acid ester units of formula CH2═CH—COOR1 (1), wherein R1 represents a C4-C12 alkyl group. A shaped article prepared with the pellets is also provided.
First claim
Opening claim text (preview).
The invention claimed is: 1. Pellets, comprising: an acrylic block copolymer (I) comprising a polymer block (A1) comprising methacrylic acid ester units and a polymer block (B1) comprising acrylic acid ester units, and an acrylic polymer (II) comprising 35 mass % or more methyl methacrylate units and having a melt flow rate (MFR) measured at 230° C. under 3.8 kg load of not less than 10 g/10 min, wherein the acrylic acid ester units present in the polymer block (B1) of the acrylic block copolymer (I) consist of methyl acrylate units and acrylic acid ester units of formula CH 2 ═CH—COOR 1 (1), wherein R 1 represents a C4-C12 alkyl group, and a mass ratio (I)/(II) of the acrylic block copolymer (I) to the acrylic polymer (II) is from 90/10 to 40/60. 2. The pellets of claim 1 , further comprising 200 to 2000 ppm of an antiblocking agent. 3. A shaped article obtained by shaping the pellets of claim 1 . 4. The pellets of claim 1 wherein a mass ratio of the methyl acrylate units to the acrylic acid ester (1) units in the polymer block (B1), is from 90/10 to 10/90.
Assignees
Inventors
Classifications
- C08L53/00Primary
Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers · CPC title
Homopolymers or copolymers of methyl methacrylate · CPC title
Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers · CPC title
Powdering or granulating · CPC title
polymerising acrylic acid, methacrylic acid or derivatives thereof · CPC title
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- What does patent US12077625B2 cover?
- Pellets of an acrylic block copolymer (I) having a polymer block (A1) containing methacrylic acid ester units and a polymer block (B1) containing acrylic acid ester units, and an acrylic polymer (II) having 35 mass % or more methyl methacrylate units are provided. The polymer block (B1) is made of methyl acrylate units and acrylic acid ester units of formula CH2═CH—COOR1 (1), wherein R1 represe…
- Who is the assignee on this patent?
- Kuraray Co
- What technology area does this patent fall under?
- Primary CPC classification C08L53/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 03 2024 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).