24/06/2005 - Controller General of Patents, Designs, and Trade Marks

(21) Application No. 2382/DEL/1998 A (22) Date of filing of Application: 13/08/1998
(54) Title of the invention: “A PROCESS FOR THE PREPARATION OF IMPROVED
COATING FROM BHILAWANUT SHELL LIQUID; USEFUL
FOR THE PROTECTION OF BOMBOOSURFACES.”
(51) International Classification 7 : C10M137/10,
CO7C65/00, C09D3/00
(30) Priority Data:
(31) Document No.: NA
(32) Date: NA
(33) Name of convention country: NA
(66) Filed U/s 5(2): NIL
(61) Patent of addition to application No.: NA
(62) Filed on: NA
(63) Divisional to Application No.: NIL
(64) Filed on: NA
Total No Of Page: 24
(57) Abstract
(71) Name of the applicant:
COUNCIL OF SCIENTIFIC &
INDUSTRIAL RESEARCH.
Address of the Applicant:
Rafi Marg New Delhi-110001
(72) Name of the Inventor:
MOHINI SAXENA
SORNA GOWRI
The present invention provides a process for the preparation of improved surface coating from
bhilawanut shell liquid useful for the protection of bamboo surfaces, which comprises reacting
under reflux at a temperature in the range of 80 to 90 0 C for a period in the range of one to one and
half hours the ingredients comprising of bhilwanut shell Liquid 20 to 40 parts by weight, Phenol
30 to 60 parts by weight formalin 35 to 70 parts by weight, Catalyst Na OH 2.5 to 5 parts by
weight, Water 5 to 10 parts by weight and adding 5-6% of Cupric chloride to the refluxed
composition to get the said surface coating of air drying property.
18117