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Polyoxymethylene compositions with branched polymers
US9109112B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109112-B2 |
| Application number | US-201113703059-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 27, 2011 |
| Priority date | Jun 25, 2010 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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Polyoxymethylene compositions with polyoxymethylene polymers polymer/polyol additives having a core-link-arm structure. Upon molding, these compositions exhibit stable melt viscosity and simultaneous improvement in notched Izod impact strength and/or decreased relative apparent capillary melt viscosity, and/or increased elongation at break, relative to polyoxymethylene compositions lacking such core-link-arm structure additives.
First claim
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What is claimed is: 1. A polyoxymethylene composition comprising: (a) from 50 to 99.5 weight percent of at least one polyoxymethylene polymer selected from the group consisting of homopolymer, copolymer and mixtures of these; (b) from 0.5 to 1.0 weight percent of at least one polymer; (c) from 0 to 30 weight percent of one or more fillers; and (d) from 0 to 10 weight percent of additives, wherein: the total weight percent of (a), (b), (c), and (d) is 100 percent, wherein…
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Frequently asked questions
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- What does patent US9109112B2 cover?
- Polyoxymethylene compositions with polyoxymethylene polymers polymer/polyol additives having a core-link-arm structure. Upon molding, these compositions exhibit stable melt viscosity and simultaneous improvement in notched Izod impact strength and/or decreased relative apparent capillary melt viscosity, and/or increased elongation at break, relative to polyoxymethylene compositions lacking such…
- Who is the assignee on this patent?
- Ratnagiri Ramabhadra, Chenault Henry Keith, Du Pont
- What technology area does this patent fall under?
- Primary CPC classification C08L71/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 18 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).