Hing Cheng, P.C. Hing Cheng Pc 123 N 9Th St, Philadelphia, PA 19107 (202)9039697 (Office) Nong Dua Cheng Llc 911 Arch St Ste 201, Philadelphia, PA 19107 (215)9738199 (Office)
Licenses:
Pennsylvania - Active 2006 Dist. of Columbia - Suspended 2004
Novel polyamide hot melt adhesive compositions are disclosed together with a novel method of preparation. The process of the invention comprises condensation of hexamethylene diamine with an acid mixture of specific aliphatic C. sub. 19 dicarboxylic acids, aliphatic C. sub. 6 -C. sub. 10 dicarboxylic acids and a specific class of C. sub. 2 -C. sub. 27 monocarboxylic acids. The process is carried out initially in aqueous solvent and in the presence of a catalyst selected from phosphoric acid, magnesium oxide and calcium oxide. The adhesive compositions are particularly useful in adhering poromerics such as natural and synthetic leather goods. The compositions of the invention are also useful adhesives for adhering metals.
Cheng T. - Investor; Board Member and Advisor; Management, Audit, and Security Consultant (2009) American Contract Bridge League - Certified Club and Cruise Director (2005) Audrey Grant - Accredited Better Bridge Teacher (2012) Government of Hong Kong - Immigration Officer (1964-1966) IBM - Equipment Order Processor (1969-1970) Price Waterhouse - Senior Auditor (1970-1976) The Wharton School of the University of Pennsylvania - Assistant Professor of Accounting (1981-1984) McGill University - Associate Professor of Accounting (1984-1987) CIBC Wood Gundy - Investment Advisor (1987-1990) Ontario Teachers' Pension Plan - Chief Internal Auditor (1990-1992) Saint Mary's University - Professor of Accounting (1992-2009)
Education:
Li Sing Primary School, HK, Saint Joseph's College, HK, The University of Hong Kong, Sir George Williams University - B.Com., Concordia University - MBA, McGill University - Chartered Accountant, University of Missouri–Columbia - PhD
About:
My bio:Â http://www.linkedin.com/in/ct8...
Tagline:
PhD, CIA. Investor; Board Member and Advisor; Management, Audit, and Security Consultant
Thomas Cheng
Lived:
Columbia, MD Washington, DC
Education:
American University - Justice/Law and Public Communication
Thomas Cheng
Education:
British Columbia Institute of Technology - Computer Information Technology
Thomas Cheng
Education:
National Taiwan University - Computer Sciences and Information Engineering