Production of viscoelastic polyurethane systems using block polymers having bonded siloxane blocks as cell openers
US-2016075846-A1 · Mar 17, 2016 · US
Delayed action gelling catalyst compositions and methods for making polyurethane polymers
US10081700B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10081700-B2 |
| Application number | US-201615093838-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 8, 2016 |
| Priority date | May 5, 2015 |
| Publication date | Sep 25, 2018 |
| Grant date | Sep 25, 2018 |
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- Title
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Abstract
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Additives for making polyurethanes are disclosed. The additives are based on combining specific carboxylic acids or carboxylic di-acids together with a gelling catalysts obtained when mixing an isocyanate-reactive tertiary amine catalysts with dimethyl tin di carboxylate salts and/or dimethyltin mercaptide salts.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for making polyurethane polymer comprising contacting at least one polyol and at least one isocyanate while in the presence of a catalyst composition comprising a combination of: i) at least one dimethyltin di-carboxylate salt, ii) at least one gelling tertiary amine catalyst, and iii) at least one organic carboxylic acid; wherein the at least one dimethyltin di-carboxylate salt is selected from the group consisting of dimethyltin dipropionate, dimethyltin dibutanoate, dimethyltin dipentanoate, dimethyltin dihexanoate, dimethyltin diheptanoate, dimethyltin dioctanoate, dimethyltin dinonanoate, dimethyltin didecanoate, dimethyltin diundecanoate, dimethyltin dimyristate, dimethyltin dipalmitate, dimethyltin distearate, dimethyltin dioleate, the corresponding neo-acid derivatives including dimethyltin dineopentanoate, dimehtyltin dineohexanoate, dimethyltin dineoheptanoate, dimethyltin dineooctanoate, dimethyltin dineononanoate, dimethyltin dineoundecanoate, dimethyltin dineododecanoate, dimethyltin dineotetradecanoate, dimethyltin dineohexadecanoate, and dimethyltin dineooctadecanoate. 2. The method of claim 1 wherein the method further comprising contacting in the presence of at least one blowing catalyst and at least one blowing agent thereby forming a polyurethane foam. 3. A method for making polyurethane polymer comprising contacting at least one polyol and at least one isocyanate while in the presence of a catalyst comprising a combination of: i) at least one dimethyltin di-carboxylate salt, ii) at least one dimethyltin mercaptide salt, iii) at least one gelling tertiary amine catalyst, and iv) at least one organic carboxylic acid; wherein the at least one dimethyltin di-carboxylate salt is selected from the group consisting of dimethyltin dipropionate, dimethyltin dibutanoate, dimethyltin dipentanoate, dimethyltin dihexanoate, dimethyltin diheptanoate, dimethyltin dioctanoate, dimethyltin dinonanoate, dimethyltin didecanoate, dimethyltin diundecanoate, dimethyltin dimyristate, dimethyltin dipalmitate, dimethyltin distearate, dimethyltin dioleate, the corresponding neo-acid derivatives including dimethyltin dineopentanoate, dimehtyltin dineohexanoate, dimethyltin dineoheptanoate, dimethyltin dineooctanoate, dimethyltin dineononanoate, dimethyltin dineoundecanoate, dimethyltin dineododecanoate, dimethyltin dineotetradecanoate, dimethyltin dineohexadecanoate, and dimethyltin dineooctadecanoate. 4. The method of claim 3 further comprising contacting in the presence of at least one blowing catalyst and at least one blowing agent thereby forming a polyurethane foam.
Assignees
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Classifications
having ether, acetal, or orthoester groups · CPC title
of tin · CPC title
mixtures of two or more polyetherpolyols having at least three hydroxy groups · CPC title
using blowing gases generated by a previously added blowing agent · CPC title
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US10081700B2 cover?
- Additives for making polyurethanes are disclosed. The additives are based on combining specific carboxylic acids or carboxylic di-acids together with a gelling catalysts obtained when mixing an isocyanate-reactive tertiary amine catalysts with dimethyl tin di carboxylate salts and/or dimethyltin mercaptide salts.
- Who is the assignee on this patent?
- Evonik Degussa Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C08G18/4829. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 25 2018 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).