Polymers, co-polymers, and monomers using co2 as a reagent
US-2015376331-A1 · Dec 31, 2015 · US
Polycarbonate resin usable as oil-adsorbing material
US9708445B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9708445-B2 |
| Application number | US-201414915731-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 12, 2014 |
| Priority date | Sep 20, 2013 |
| Publication date | Jul 18, 2017 |
| Grant date | Jul 18, 2017 |
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.
The present invention provides a polycarbonate resin that contains a repeating unit represented by formula (1). (In the formula, a, b, c and d are each an integer of 0 or higher, and a+b+c+d=12 to 48 inclusive.) Furthermore, the present invention provides an oil-absorbing material that uses the polycarbonate resin.
First claim
Opening claim text (preview).
The invention claimed is: 1. An oil-absorbing material consisting of a polycarbonate resin comprising a repeating unit represented by Formula (1): wherein a, b, c and d are each an integer of 0 or higher, and a+b+c+d is 12 to 48, inclusive. 2. The oil-absorbing material according to claim 1 , wherein the polycarbonate resin comprises only the repeating unit represented by Formula (1). 3. The oil-absorbing material according to claim 1 , wherein a+b+c+d is 30. 4. The oil-absorbing material according to claim 1 , wherein the polycarbonate resin has a solid body at 25° C. 5. The oil-absorbing material according to claim 4 , wherein the polycarbonate resin has a weight-average molecular weight of 70,000 to 500,000 in terms of polystyrene. 6. The oil-absorbing material according to claim 1 , wherein the oil-absorbing material has a viscous body at 25° C. 7. The oil-absorbing material according to claim 6 , wherein the polycarbonate resin has a weight-average molecular weight of 10,000 to 30,000 in terms of polystyrene. 8. The oil-absorbing material according to claim 1 , wherein the polycarbonate resin has a specific gravity less than 1 g/cm 3 . 9. A method for producing the oil-absorbing material according to claim 1 , comprising using a dihydroxy compound represented by Formula (2) below as a raw material: wherein a, b, c and d are each an integer of 0 or higher, and a+b+c+d is 12 to 48, inclusive.
Assignees
Inventors
Classifications
obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation (macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G) · CPC title
Hydrocarbons, e.g. oil · CPC title
by addition of solid materials for removing an oily layer on water · CPC title
- C08G64/0208Primary
saturated · CPC title
and alcohols · CPC title
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 US9708445B2 cover?
- The present invention provides a polycarbonate resin that contains a repeating unit represented by formula (1). (In the formula, a, b, c and d are each an integer of 0 or higher, and a+b+c+d=12 to 48 inclusive.) Furthermore, the present invention provides an oil-absorbing material that uses the polycarbonate resin.
- Who is the assignee on this patent?
- Mitsubishi Gas Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C08G64/0208. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 18 2017 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).