High elastic primer composition

Patent metadata

Field	Value
Publication number	US-10030152-B2
Application number	US-201514869356-A
Country	US
Kind code	B2
Filing date	Sep 29, 2015
Priority date	Dec 31, 2014
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

The present invention relates to a high elastic primer composition. The high elastic primer composition comprises: a hard urethane-modified polyester in an amount of about 10 to 20 wt %, a soft urethane-modified polyester in an amount of about 5 to 20 wt %, a polycaprolactone in an amount of about 1 to 10 wt %, a polymer resin 20 to 50 wt %, an extender pigment 0.1 to 20 wt % and a solvent 15 to 50 wt %, based on the total weight of the primer composition.

First claim

What is claimed is:

1. A primer composition, comprising:
a hard urethane-modified polyester in an amount of about 10 to 20 wt %;
a soft urethane-modified polyester in an amount of about 5 to 12 wt %;
a polycaprolactone in an amount of about 1 to 10 wt %;
a polymer resin in an amount of about 20 to 50 wt %;
an extender pigment in an amount of about 0.1 to 20 wt %; and
a solvent in an amount of about 15 to 50 wt %,
wherein all wt % are based on the total weight of the primer composition,
wherein the soft urethane-modified polyester comprises a soft segment formed by adding aromatic diisocyanate, and
the aromatic diisocyanate is added in an amount of 5 to 10 wt %, based on the total weight of the soft urethane-modified polyester.

2. The primer composition of claim 1 , wherein the polymer resin is at least one selected from the group consisting of Blocked Isocyanate (B.I), epoxy resin and melamine.

3. The primer composition of claim 1 , wherein the extender pigment is BaSO 4 .

4. The primer composition of claim 1 , wherein the solvent is aromatic hydrocarbons, esters or a mixture thereof.

5. The primer composition of claim 1 , further comprising:
an organic pigment in an amount of about 0.1 to 10 wt %;
titanium dioxide in an amount of about 0.01 to 1 wt %;
a surface modifier in an amount of about 0.1 to 1 wt %;
a dispersant in an amount of about 0.1 to 1 wt %;
a storage stabilizer in an amount of about 0.1 to 1 wt %; and
a thickening additive in an amount of about 0.1 to 5 wt %,
wherein all wt % are based on the total weight of the primer composition.

6. A vehicle that comprises a primer composition of claim 1 .

Assignees

• Hyundai Motor Co Ltd

Inventors

• Yang Ji Won

Classifications

• C08K2003/3045

  Sulfates · CPC title

• C09D161/28

  with melamine · CPC title

• C08K3/013

  Fillers, pigments or reinforcing additives · CPC title

• C09D7/20

  Diluents or solvents · CPC title

• C09D7/61

  inorganic · CPC title