Polycarbonate resin usable as oil-adsorbing material

Patent metadata

Field	Value
Publication number	US-2016194440-A1
Application number	US-201414915731-A
Country	US
Kind code	A1
Filing date	Sep 12, 2014
Priority date	Sep 20, 2013
Publication date	Jul 7, 2016
Grant date	—

Abstract

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

1 . 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 polycarbonate resin according to claim 1 , comprising only the repeating unit represented by Formula (1).

3 . The polycarbonate resin according to claim 1 , wherein a+b+c+d is 30.

4 . The polycarbonate resin according to claim 1 , which has a solid body at 25° C.

5 . The polycarbonate resin according to claim 4 , wherein the weight-average molecular weight is 70,000 to 500,000 in terms of polystyrene.

6 . The polycarbonate resin according to claim 1 , which has a viscous body at 25° C.

7 . The polycarbonate resin according to claim 6 , wherein the weight-average molecular weight is 10,000 to 30,000 in terms of polystyrene.

8 . The polycarbonate resin according to claim 1 , whose specific gravity is less than 1 g/cm 3 .

9 . A method for producing the polycarbonate resin according to claim 1 , comprising a step of using a dihydroxy compound represented by Formula (2) below as a mw 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).

10 . A molded product that uses the polycarbonate resin according to claim 1 .

11 . An oil-absorbing material that uses the polycarbonate resin according to claim 1 .

Assignees

• Mitsubishi Gas Chemical Co

Inventors

• Kato Noriyuki
• Hirakawa Manabu

Classifications

• C08G64/0208 Primary

  saturated · CPC title

• B01J20/262

  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

• C08G64/305

  and alcohols · CPC title

• C09K3/32

  for absorbing liquids to remove pollution, e.g. oil, gasoline, fat · CPC title

• C02F2101/32

  Hydrocarbons, e.g. oil · CPC title