Windshield for vehicle and manufacturing method thereof
US-2024383235-A1 · Nov 21, 2024 · US
Polymer material based on polylactic acid
US9969149B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9969149-B2 |
| Application number | US-201214128956-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 6, 2012 |
| Priority date | Jun 23, 2011 |
| Publication date | May 15, 2018 |
| Grant date | May 15, 2018 |
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- Title
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- Abstract
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Abstract
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The invention relates to a polymer material comprising a mixture of: a base polylactic acid (PLA) polymer formed by between 60 wt.-% and 85 wt.-% L units and between 15 wt.-% and 40 wt.-% D units or between 60 wt.-% and 85 wt.-% D units and between 15 wt.-% and 40 wt.-% L units; and a plasticizer selected from the group containing citric acid esters, glycerin esters and derivatives, poly(alkylene ethers), oligomers of lactide or derivatives of lactic acid, fatty acid esters and epoxidized oils, representing between 10 wt.-% and 40 wt.-% in relation to the total weight of the polymer material.
First claim
Opening claim text (preview).
The invention claimed is: 1. A laminated assembly according, comprising: at least two substrates, and an interposed film of impact- and tear-resistant polymer material comprising a mixture (i) of a base polylactic acid polymer comprising 15% to 30% by weight of a D structural unit and 70% to 85% of an L structural unit; and (ii) a plasticizer in a content of from 15% to 20% by weight based on a total weight of the impact- and tear-resistant polymer material, wherein one of the at least two substrates is a glass substrate, wherein the interposed film lies between the at least two substrates, wherein the plasticizer is n-tri-butyl citrate, and wherein a Young's modulus of the interposed film is from 2 to 56 MPa. 2. The laminated assembly according to claim 1 , wherein an elongation at break of the interposed film is 350% to 620%.
Assignees
Inventors
Classifications
being cross-linked · CPC title
Next to polyester [e.g., alkyd] · CPC title
Tear resistant · CPC title
Use of organic ingredients · CPC title
Esters; Ether-esters · CPC title
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- What does patent US9969149B2 cover?
- The invention relates to a polymer material comprising a mixture of: a base polylactic acid (PLA) polymer formed by between 60 wt.-% and 85 wt.-% L units and between 15 wt.-% and 40 wt.-% D units or between 60 wt.-% and 85 wt.-% D units and between 15 wt.-% and 40 wt.-% L units; and a plasticizer selected from the group containing citric acid esters, glycerin esters and derivatives, poly(alkyle…
- Who is the assignee on this patent?
- Dropsit Sophie, Dubois Philippe, Paternostre Laurent, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification B32B17/10779. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 15 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).