Title of Invention

“POLYVINYL ACETAL POWDER AND POWDER COATING MATERIAL USING THE SAME”

Abstract Disclosed is a polyvinyl acetal powder which is excellent in fluidity during coating when used in a powder coating material. This polyvinyl acetal powder enables to obtain a coating film having good impact resistance and thickness uniformity (coating film thickness uniformity). Also disclosed is a powder coating material using such a polyvinyl acetal powder. Specifically disclosed is a polyvinyl acetal powder having an average particle diameter of 10-150 µm and a maximum particle diameter of not more than 250 µm. The polyvinyl acetal powder has a melt flow rate as measured in accordance with JIS K 7210:1999 of 1-200 g/10 min. Also specifically disclosed is a powder coating material using such a polyvinyl acetal powder.
Full Text PLEASE SEE THE SPECIFICATION ATTACHED.

Documents:

8959-delnp-2008-Claims-(26-11-2013).pdf

8959-delnp-2008-Correspondence Others-(26-11-2013).pdf

8959-delnp-2008-Form-3-(26-11-2013).pdf

8959-delnp-2008-GPA-(26-11-2013).pdf

8959-delnp-2008-Petition-137-(26-11-2013).pdf

Form-1.PDF

Form-3.pdf

Form-5.pdf


Patent Number 258318
Indian Patent Application Number 8959/DELNP/2008
PG Journal Number 01/2014
Publication Date 03-Jan-2014
Grant Date 30-Dec-2013
Date of Filing 23-Oct-2008
Name of Patentee KURARAY CO. LTD.
Applicant Address 1621 Sakazu Kurashiki-shi Okayama 710-8622 Japan
Inventors:
# Inventor's Name Inventor's Address
1 Seiji TANIMOTO c/o KURARAY CO. LTD. 1-3 Otemachi 1-chome Chiyoda-ku Tokyo 100-8115 Japan
2 Koichiro ISOUE c/o KURARAY Co. LTD. 7471 Tamashimaotoshima Kurashiki-shi Okayama 713-8550 Japan
3 Makio TOKOH c/o KURARAY Co. LTD. 7471 Tamashimaotoshima Kurashiki-shi Okayama 713-8550 Japan
4 Tamotsu MIURA c/o YOKOHOMA JUSHI COAT INC. 3834 Ikebe-cho Tsuzuki-ku Yokohoma-shi Kanagawa 224-0053 Japan
PCT International Classification Number C08J 3/12
PCT International Application Number PCT/JP2007/059082
PCT International Filing date 2007-04-26
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2006-135363 2006-05-15 Japan