IP Library Granted Patent US 8,202,943
Granted Patent B2
US 8,202,943 · App. 12/521,040 · Granted Jun 19, 2012

Fluidity-improving agent, aromatic polycarbonate resin composition, and shaped article thereof

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,202,943
App. No.
12/521,040
Granted
Jun 19, 2012
Kind
B2
Abstract

A fluidity-improving agent containing 0.5 to 99.5 parts by mass of a polymer (A) which is obtained by polymerizing a monomer mixture (a) containing 0.5 to 99% by mass of (a1) an aromatic vinyl monomer, 0.5 to 99% by mass of (a2) a phenyl(meth)acrylate or a phenyl(meth)acrylate containing a substituent in a phenyl group, and 0.5 to 5% by mass of (a3) a vinyl monomer including a functional group (X), and 0.5 to 99.5 parts by mass of a polymer (B) which is obtained by polymerizing a monomer mixture (b) containing (b1) a phenyl(meth)acrylate or a phenyl(meth)acrylate containing a substituent in a phenyl group with a compound including a functional group (Y) reactive with the functional group (X), where the total of the polymer (A) and the polymer (B) is 100 parts by mass.

Claims (28)

1. A fluidity-improving agent, comprising:

0.5 to 99.5 parts by mass of a polymer (A) which is obtained by polymerizing a monomer mixture (a) comprising 0.5 to 99% by mass of (a1) an aromatic vinyl monomer, 0.5 to 99% by mass of (a2) a phenyl(meth)acrylate or a phenyl(meth)acrylate comprising a substituent in a phenyl group, and 0.5 to 5% by mass of (a3) a vinyl monomer comprising at least one functional group (X) selected from the group consisting of an epoxy group, a carboxyl group, a hydroxyl group and an amino group; and

0.5 to 99.5 parts by mass of a polymer (B) which is obtained by polymerizing a monomer mixture (b) comprising (b1) a phenyl(meth)acrylate or a phenyl(meth)acrylate comprising a substituent in a phenyl group with a compound comprising a functional group (Y) capable of reacting with the functional group (X),

with the proviso that a total of the polymer (A) and the polymer (B) is 100 parts by mass.

2. A fluidity-improving agent, comprising:

10 to 45 parts by mass of a polymer (A) which is obtained by polymerizing a monomer mixture (a) comprising 0.5 to 99% by mass of (a1) an aromatic vinyl monomer, 0.5 to 99% by mass of (a2) a phenyl(meth)acrylate or a phenyl (meth)acrylate comprising a substituent in a phenyl group, and 0.5 to 5% by mass of (a3) a vinyl monomer comprising at least one functional group (X) selected from the group consisting of an epoxy group, a carboxyl group, a hydroxyl group and an amino group;

10 to 45 parts by mass of a polymer (B) which is obtained by polymerizing a monomer mixture (b) comprising (b1) a phenyl(meth)acrylate or a phenyl (meth)acrylate comprising a substituent in a phenyl group with a compound comprising a functional group (Y) capable of reacting with the functional group (X); and

10 to 80 parts by mass of a polymer (C) which is obtained by polymerizing a monomer mixture (c) comprising 0.5 to 99.5% by mass of (c1) an aromatic vinyl monomer and 0.5 to 99.5% by mass of (c2) a phenyl(meth)acrylate or a phenyl(meth)acrylate comprising a substituent in a phenyl group,

with the proviso that a total of the polymers (A) to (C) is 100 parts by mass.

3. The agent of claim 1 or 2 , wherein the fluidity-improving agent is obtained by reacting the functional group (X) possessed by the polymer (A) with the functional group (Y) possessed by the polymer (B).

4. A fluidity-improving agent comprising:

0.5 to 99.5 parts by mass of a polymer (A) which is obtained by polymerizing a monomer mixture (a) comprising 0.5 to 99% by mass of (a1) an aromatic vinyl monomer, 0.5 to 99% by mass of (a2) a phenyl(meth)acrylate or a phenyl(meth)acrylate comprising a substituent in a phenyl group, and 0.5 to 5% by mass of (a3) a vinyl monomer comprising at least one functional group (X); and

0.5 to 99.5 parts by mass of a polymer (B) which is obtained by polymerizing a monomer mixture (b) comprising (b1) a phenyl(meth)acrylate or a phenyl(meth)acrylate comprising a substituent in a phenyl group with a compound comprising a functional group (Y) capable of reacting with the functional group (X),

with the proviso that a total of the polymer (A) and the polymer (B) is 100 parts by mass, and

wherein the functional group (X) is an epoxy group and the functional group (Y) is a carboxyl group.

5. An aromatic polycarbonate resin composition, comprising 70 to 99.9% by mass of an aromatic polycarbonate resin and 0.1 to 30% by mass of the agent of claim 1 .

6. An aromatic polycarbonate resin composition, comprising 69.9 to 99.8% by mass of an aromatic polycarbonate resin, 0.1 to 30% by mass of the agent of claim 1 , and 0.1 to 30% by mass of a light diffusing agent.

7. A shaped article obtained by shaping the aromatic polycarbonate resin composition of claim 5 or 6 .

8. The article of claim 7 , further comprising a hard coat layer on a surface of the shaped article.

9. A method of producing a glazing material, the method comprising:

shaping the composition of claim 5 , to obtain a glazing material.

10. A light diffusing plate obtained by shaping the aromatic polycarbonate resin composition of claim 6 .

11. An optical disk substrate obtained by shaping the aromatic polycarbonate resin composition of claim 5 .

12. A light guide plate obtained by shaping the aromatic polycarbonate resin composition of claim 5 .

13. The method of claim 9 , further comprising:

coating the glazing material with a hard coat layer.

14. A glazing material, comprising the shaped article of claim 7 .

15. A glazing material, comprising the hard coated article of claim 8 .

Assignments (2)
CHANGE OF NAME Recorded Sep 5, 2017
From: MITSUBISHI RAYON CO., LTD.
To: MITSUBISHI CHEMICAL CORPORATION
Reel/Frame 043750/0834 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2009
From: MATSUOKA, SHINJI; NABESHIMA, YASUHIKO
To: MITSUBISHI RAYON CO., LTD.
Reel/Frame 022903/0873 →