Novel biobased polyester
US-2024327659-A1 · Oct 3, 2024 · US
Thermally decomposable polymer compositions for forming microelectronic assemblies
US9505948B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9505948-B2 |
| Application number | US-201314647330-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 12, 2013 |
| Priority date | Dec 17, 2012 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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A thermally decomposable polymer composition comprising a polyester containing repeating units of an ester of diglycolic acid and difunctional tertiary alcohol are disclosed, which are useful in the forming of microelectronic assemblies. A representative example of a composition comprises a thermally decomposable polymer of the formula: wherein n is at least about 20, which provides both tackiness and solder fluxing, among other benefits.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sacrificial polymer composition comprising: a thermally decomposable polymer comprising repeating units derived from an ester of a diglycolic acid and a difunctional tertiary alcohol; and a carrier solvent selected from acetophenone, α-angelicalactone, γ-butyrolactone, n-butyl acetate, diethylene glycol dimethyl ether, ethyl 3-ethoxypropionate, ethyl lactate, 2-heptanone, methyl isobutyl ketone, γ-octanoic lactone and combinations thereof.…
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Operations & Transport · mapped topic
Electricity · mapped topic
Operations & Transport · mapped topic
- C09D167/02Primary
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
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- What does patent US9505948B2 cover?
- A thermally decomposable polymer composition comprising a polyester containing repeating units of an ester of diglycolic acid and difunctional tertiary alcohol are disclosed, which are useful in the forming of microelectronic assemblies. A representative example of a composition comprises a thermally decomposable polymer of the formula: wherein n is at least about 20,…
- Who is the assignee on this patent?
- Promerus Llc
- What technology area does this patent fall under?
- Primary CPC classification C09D167/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 29 2016 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).