• 专利标题:   Lacquer useful for waterproof anti-shedding wood, comprises e.g. silica sol, polyacrylamide, polyvinyl alcohol, modified graphene, chitosan, carboxymethyl cellulose, nano-alumina, filler, defoamer and water.
  • 专利号:   CN107868560-A
  • 发明人:   JI Q
  • 专利权人:   MINGGUANG TAIFENG NEW MATERIAL CO LTD
  • 国际专利分类:   C09D101/28, C09D129/04, C09D133/26, C09D005/08, C09D007/43, C09D007/61, C09D007/62
  • 专利详细信息:   CN107868560-A 03 Apr 2018 C09D-133/26 201832 Pages: 7 Chinese
  • 申请详细信息:   CN107868560-A CN11232258 30 Nov 2017
  • 优先权号:   CN11232258

▎ 摘  要

NOVELTY - Lacquer comprises 10-22 pts. wt. silica sol, 18-35 pts. wt. polyacrylamide, 10-17 pts. wt. polyvinyl alcohol, 0.3-1.2 pts. wt. modified graphene, 12-20 pts. wt. high-viscosity attapulgite clay, 6-10 pts. wt. chitosan, 3-12 pts. wt. carboxymethyl cellulose, 5-13 pts. wt. nano-alumina, 5-9 pts. wt. nano titanium dioxide, 8-15 pts. wt. filler, 1-5 pts. wt. defoamer and water (balance amount). USE - The lacquer is useful for waterproof anti-shedding wood (claimed). ADVANTAGE - The lacquer: has anti-cracking effect; and is easy to coating, safe and environmentally friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing lacquer, comprising (i) adding polyacrylamide and polyvinyl alcohol into reactor, adding water, mixing, heating to 60-80 degrees C, then adding certain amount of modified graphene to the reactor, stirring and reacting for 2-3 hours to obtain reaction product a1, (ii) silica sol, chitosan and carboxymethyl cellulose into reaction product a1, stirring and reacting for 0.5-1 hours and cooling to obtain product a2, and (iii) mixing the product a2 obtained in step (ii) with high-viscosity attapulgite clay, nano-alumina, nano-titanium dioxide, filler and antifoaming agent and stirring and then transferring mixture to shearer with a shear rate of 1000-2000 revolutions/minute for 10-30 minutes to obtain final product.