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.
Name / Title
Company / Classification
Phones & Addresses
Thomas Cheng President
Master Instrument New York Corporation Whol Electronic Parts/Equipment Whol Electrical Equipment
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
pcAge, Inc. since Sep 2007
President
DDC Inc. Aug 2003 - Aug 2005
Marketing Manager
Sun Microsystems 1998 - 2001
Market Development
Integrated Systems, Inc. 1995 - 1998
Marketing Manager
Ziatech Corporation 1991 - 1995
Product Manager
Education:
Wharton School, University of Pennsylvania 1989 - 1991
MBA, Finance and Marketing
University of Pennsylvania 1981 - 1985
BSEE, EE, CS
Skills:
Product Marketing Product Management Strategic Partnerships Business Strategy Marketing Strategy
Bank of America San Francisco, CA 1996 to 2012 Operations Production Manager, Deposit Services, Cash ServicesCash Vault, Transaction Services
1993 to 1996 Associate Operations ManagerCash Vault, Transaction Services
1990 to 1993 Section Manager OperationsSouth San Francisco San Francisco, CA 1984 to 1989 Supervisor, Round Table Pizza
Googleplus
Thomas Cheng
Work:
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: http://www.linkedin.com/in/ct8...
Tagline:
PhD, CIA. Investor; Board Member and Advisor; Management, Audit, and Security Consultant
Thomas Cheng
Education:
British Columbia Institute of Technology - Computer Information Technology
Thomas Cheng
Education:
National Taiwan University - Computer Sciences and Information Engineering