Polymer foams
US-9505906-B1 · Nov 29, 2016 · US
Low-density polyurethane shoe soles or sole parts with high rebound resilience and low compression set
US9023910B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9023910-B2 |
| Application number | US-201313745199-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 18, 2013 |
| Priority date | Jan 18, 2012 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
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- Title
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Abstract
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A process for producing a polyurethane shoe sole having an article density of 100 to 350 g/L and being made from an organic polyisocyanate, a polyol, a blowing agent consisting of water, and optionally a crosslinking and/or chain-extending agent, a catalyst, and other auxiliaries and/or additives. First, polyisocyanate, polyol and any crosslinking and/or chain-extending agent are mixed and reacted at a temperature of 110° C. to 180° C. to give a prepolymer having polyisocyanate groups. Second, the isocyanate-terminated prepolymer obtained and any remaining polyisocyanate are mixed with any remaining polyol, blowing agent comprising water, and any remaining crosslinking and/or chain-extending agent and also any catalyst and other auxiliaries and/or additives are introduced into a mold and allowed to fully react to give a polyurethane shoe sole.
First claim
Opening claim text (preview).
We claim: 1. A process for producing a polyurethane shoe sole having an article density of 100 to 350 g/L, in which components comprising the following are mixed and/or reacted: a) an organic polyisocyanate, b) a polyol, c) a blowing agent comprising water, and optionally d) a crosslinking and/or chain-extending agent, e) a catalyst, and f) at least one auxiliary and/or additive, the process comprising (1) mixing and reacting at least part of polyisocyanate (a), at l…
Assignees
Inventors
Classifications
- B29C44/3442Primary
Operations & Transport · mapped topic
- C08J9/125Primary
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9023910B2 cover?
- A process for producing a polyurethane shoe sole having an article density of 100 to 350 g/L and being made from an organic polyisocyanate, a polyol, a blowing agent consisting of water, and optionally a crosslinking and/or chain-extending agent, a catalyst, and other auxiliaries and/or additives. First, polyisocyanate, polyol and any crosslinking and/or chain-extending agent are mixed and reac…
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification B29C44/3442. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 05 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).