Tag Archives: semi-finished

Process for preparing semi-finished nitrate from nitrate-type bittern

Application Number: 00118906Application Date: 2000.06.14Publication Number: 1283583Publication Date: 2001.02.14Priority Information: International: C01B21/48;C01D9/02Applicant(s) Name: Changtuo Building Chemicals Co., Ltd., ShanshanAddress: Inventor(s) Name: Kang Dianxiang;Zhou JianchuPatent Agency Code: 65002Patent Agent: lin dongchunAbstract A process for preparing semi-finished nitrate from nitrate-type bittern includes congealing the nitrate-type bittern, salting out, dewatering, concentrating and crystallization. Its advantages include simple and… Read More »

Semi-finished product forming method for plastic metal watch band

Application Number: 00123564Application Date: 2000.08.17Publication Number: 1339278Publication Date: 2002.03.13Priority Information: International: A44C5/00;A44C27/00;B21D3/16;B21D22/00Applicant(s) Name: Shunxingda Co., Ltd.Address: Inventor(s) Name: Chen QingdaPatent Agency Code: 72002Patent Agent: li shumengAbstract The process of forming semi-finished product for plastic metal watch band includes the steps of: pressing wire material of plastic metal into coarse blank; hot rolling to form blank… Read More »

Optical character lens made of photochromatic composite plastics or semi-finished product blank

Application Number: 00103831Application Date: 2000.03.02Publication Number: 1281784Publication Date: 2001.01.31Priority Information: 1993/12/10 US 08/165056; 1993/12/15 US 08/167103International: B29D11/00Applicant(s) Name: Innoter Co.Address: Inventor(s) Name: A. Guta;R.D. BrumPatent Agency Code: 72001Patent Agent: zhou huiminAbstract The invention relates to an optical character lens provided with photochromic additives made of photochromatic composite plastics or semi-finished product blank.