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Impact-modified polycarbonate compositions for simplified production of components of low temperature toughness having high gloss and matt component sections
US8933153B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8933153-B2 |
| Application number | US-201313852184-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2013 |
| Priority date | Apr 5, 2012 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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- Title
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Abstract
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The present invention relates to impact-modified polycarbonate molding compositions, the use thereof for producing shaped bodies and moldings, as well as shaped bodies and molding produced therefrom themselves. Compositions of the present invention comprise mixtures of graft polymers prepared in the emulsion polymerization process and in the bulk, solution and/or suspension polymerization process having a defined grafted particle size distribution. Compositions of the present invention, on the one hand are suitable for producing, over a wide processing window, (i.e. also at high processing temperatures), non-lacquered components having a high gloss surface, and on the other hand, are also capable of precise imaging of fine-grained or surface-etched mold surfaces. A result of this point is that components of the present invention are capable of having both high gloss and deep matte component sections that can be realized in a mold having different surface textures in a single injection molding step without further after-treatment of the surface. The molding compositions have a high heat distortion temperature and ductility at low temperatures and an excellent resistance to stress cracking under the influence of media—which is particularly important with respect to non-lacquered components.
First claim
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The invention claimed is: 1. A polymer composition comprising: A) from 45 to 95 parts by wt., based on the sum of A and B, wherein the parts by weight of A and B add up to 100, of aromatic polycarbonate and/or polyester carbonate, B) from 5 to 55 parts by wt., based on the sum of A and B, of a mixture comprising: B1) at least one graft polymer prepared by an emulsion polymerization process, B2) at least one graft polymer prepared by a bulk, suspension and/or solution polymeri…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8933153B2 cover?
- The present invention relates to impact-modified polycarbonate molding compositions, the use thereof for producing shaped bodies and moldings, as well as shaped bodies and molding produced therefrom themselves. Compositions of the present invention comprise mixtures of graft polymers prepared in the emulsion polymerization process and in the bulk, solution and/or suspension polymerization proce…
- Who is the assignee on this patent?
- Bayer Ip Gmbh, Bayer Intellectual Property
- What technology area does this patent fall under?
- Primary CPC classification C08L69/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 13 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).