Powder composition of polyarylene ether ketone ketones allowing an excellent castability/coalescence balance suitable for laser sintering
US-2016333190-A1 · Nov 17, 2016 · US
Method for producing an object by melting a polymer powder in a powder sintering device
US10464258B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10464258-B2 |
| Application number | US-201916384055-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2019 |
| Priority date | Dec 16, 2014 |
| Publication date | Nov 5, 2019 |
| Grant date | Nov 5, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
A graft copolymer comprising: a core polymer comprising a crosslinked or non-crosslinked polysaccharide, a plurality of primary graft polymers covalently grafted to the core polymer, a plurality of secondary graft polymers covalently grafted to each primary graft polymer, an injectable dermal aesthetic formulation comprising such a graft copolymer and a method of preparing such a graft copolymer.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition comprising a semicrystalline polymer having a viscosity of between 800 and 20,000 Pa·s over a time of more than 5 minutes, the viscosity measurements being carried out in a plate-plate rheometer device at a stress frequency of less than 5 rad/s, said composition being supercooled to a temperature T below the melting temperature after exposure to a temperature Tmax above its melting point, wherein the composition is configured for use in a device for manufacturing objects by melting polymer powders. 2. The composition of claim 1 , wherein the composition is a polyamide. 3. The composition of claim 1 , wherein the composition is a filled polyamide. 4. The composition of claim 1 , wherein the composition is a polyaryletherketone. 5. The composition of claim 1 , wherein the composition is a filled polyaryletherketone. 6. The composition of claim 1 , wherein the semicrystalline polymer has a viscosity of between 800 and 20,000 Pa·s over a time of more than 10 minutes. 7. The composition of claim 1 , wherein the semicrystalline polymer has a viscosity of between 1000 and 10,000 Pa·s over a time of more than 5 minutes. 8. The composition of claim 1 , wherein the semicrystalline polymer has a viscosity of between 1000 and 10,000 Pa·s over a time of more than 10 minutes. 9. The composition of claim 1 , wherein the composition is configured for use in a device for manufacturing objects by laser sintering of polymers.
Assignees
Inventors
Classifications
Use of {PA, i.e.} polyamides, e.g. polyesteramides {or derivatives thereof,} as reinforcement · CPC title
Processes of additive manufacturing · CPC title
Use of polyethers {, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof,} as reinforcement · CPC title
having particular viscosity · CPC title
- B29C64/153Primary
using layers of powder being selectively joined, e.g. by selective laser sintering or melting · CPC title
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- What does patent US10464258B2 cover?
- A graft copolymer comprising: a core polymer comprising a crosslinked or non-crosslinked polysaccharide, a plurality of primary graft polymers covalently grafted to the core polymer, a plurality of secondary graft polymers covalently grafted to each primary graft polymer, an injectable dermal aesthetic formulation comprising such a graft copolymer and a method of preparing such a graft copolymer.
- Who is the assignee on this patent?
- Arkema France
- What technology area does this patent fall under?
- Primary CPC classification B29C64/153. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 05 2019 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).