Zeolite containing polyolefins films
US-12403670-B2 · Sep 2, 2025 · US
Preparation of low odor polyurethane foams
US2023272150A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023272150-A1 |
| Application number | US-202118004124-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 14, 2021 |
| Priority date | Sep 15, 2020 |
| Publication date | Aug 31, 2023 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method for preparing low odor polyurethane foams by the use of a high silica zeolite and a foam-forming composition.
First claim
Opening claim text (preview).
1 . A foam-forming composition for preparing polyurethane foams, comprising: at least one isocyanate component; at least one isocyanate-reactive component; and at least one silica containing zeolite additive, wherein the silica containing zeolite has an Si/Al molar ratio of greater than 35. 2 . The foam-forming composition of claim 1 , wherein the silica containing zeolite has an Si/Al molar ratio of greater than 100 and less than 700. 3 . The foam-forming composition of claim 1 , wherein the silica containing zeolite has an Si/Al molar ratio of greater than 500 and less than 700. 4 . The foam-forming composition of claim 1 , wherein the at least one silica zeolite additive is present in an amount ranging from 0.1 to 20 wt % of the total foam-forming composition. 5 . The foam-forming composition of claim 1 , wherein the at least one silica zeolite additive has a pore size or less than 10 Å. 6 . A polyurethane foam produced from the composition of claim 1 , wherein the total aldehydes present are less than 10 ppm. 7 . A polyurethane foam produced from the composition of claim 1 , wherein the foam is produced at up to 200° C. 8 . The foam-forming composition of claim 1 , wherein the silica containing zeolite has an Na wt % of less than 2. 9 . A method of producing a polyurethane foam from the foam-forming compositions of claim 1 .
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2023272150A1 cover?
- A method for preparing low odor polyurethane foams by the use of a high silica zeolite and a foam-forming composition.
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08G18/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Aug 31 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).