Cross-linked foams made from interpolymers of ethylene/alpha-olefins
US-2020270432-A1 · Aug 27, 2020 · US
Foam bead and sintered foam structure
US11866567B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11866567-B2 |
| Application number | US-201817254931-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2018 |
| Priority date | Jun 29, 2018 |
| Publication date | Jan 9, 2024 |
| Grant date | Jan 9, 2024 |
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- Title
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Abstract
Official abstract text for this publication.
The present disclosure provides a foam bead. The foam bead is formed from a composition containing (A) a silane-functionalized ethylene/α-olefin multi-block interpolymer. The present disclosure also provides a sintered foam structure. The sintered foam structure is formed from foam beads that are formed from a composition containing (A) a silane-functionalized ethylene/α-olefin multi-block interpolymer.
First claim
Opening claim text (preview).
We claim: 1. A foam bead formed from a composition comprising: (A) a silane-functionalized ethylene/α-olefin multi-block interpolymer, wherein the foam bead has a gel content from 0.1% to 3%. 2. The foam bead of claim 1 , wherein the composition comprises: (A) the silane-functionalized ethylene/α-olefin multi-block interpolymer; and (B) an ethylene/α-olefin multi-block interpolymer. 3. The foam bead of claim 1 , wherein the silane-functionalized ethylene/α-olefin multi-block interpolymer has a density from 0.865 g/cc to 0.900 g/cc. 4. The foam bead of claim 1 , wherein the silane-functionalized ethylene/α-olefin multi-block interpolymer has a melt index (I2) from 0.05 g/10 min to 5.0 g/10 min. 5. The foam bead of claim 2 wherein the weight ratio of (B) ethylene/α-olefin multi-block interpolymer and (A) silane-functionalized ethylene/α-olefin multi-block interpolymer is from 0 to 2.50. 6. A sintered foam structure formed from foam beads that are formed from a composition comprising: (A) a silane-functionalized ethylene/α-olefin multi-block interpolymer, wherein the foam beads have a gel content from 0.1% to 3%. 7. The sintered foam structure of claim 6 , wherein the composition comprises: (A) the silane-functionalized ethylene/α-olefin multi-block interpolymer; and (B) an ethylene/α-olefin multi-block interpolymer. 8. The sintered foam structure of claim 7 wherein the weight ratio of (B) ethylene/α-olefin multi-block interpolymer and (A) silane-functionalized ethylene/α-olefin multi-block interpolymer is from 0 to 2.50. 9. An article comprising at least one component formed from the sintered foam structure of claim 6 . 10. The foam bead of claim 1 , wherein the silane-functionalized ethylene/α-olefin multi-block interpolymer comprises a base ethylene/α-olefin multi-block copolymer consisting of (i) ethylene and (ii) C4- C8 α-olefin comonomer. 11. The foam bead of claim 10 , wherein the foam bead has a gel content from 0.1% to 1%. 12. The foam bead of claim 11 , wherein the foam bead has a foam density of less than 0.2 g/cc. 13. The sintered foam structure, wherein the silane-functionalized ethylene/α-olefin multi-block interpolymer comprises a base ethylene/α-olefin multi-block interpolymer consisting of (i) ethylene and (ii) C4 -C8 α-olefin comonomer.
Assignees
Inventors
Classifications
- C08J9/232Primary
by sintering expandable particles · CPC title
Macromolecular compounds obtained by polymerising monomers on to block polymers · CPC title
characterized by the use of several polymeric components · CPC title
by impregnating polymer particles with the blowing agent · CPC title
Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers · CPC title
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- What does patent US11866567B2 cover?
- The present disclosure provides a foam bead. The foam bead is formed from a composition containing (A) a silane-functionalized ethylene/α-olefin multi-block interpolymer. The present disclosure also provides a sintered foam structure. The sintered foam structure is formed from foam beads that are formed from a composition containing (A) a silane-functionalized ethylene/α-olefin multi-block inte…
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08J9/232. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 09 2024 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).