JEFFREY B SWARTZ
Broker in Boston, MA
License number
Massachusetts 102468
Issued Date
Apr 1, 1978
Expiration Date
Feb 15, 2011
Type
Broker
Address
Address
Boston, MA 02199
Professional information
Law Practice Professional
Location:
Greater Boston Area
Industry:
Law Practice
Process For Sealing A Plurality Of Polybutylene Sheets
US Patent:
4243449, Jan 6, 1981
Filed:
May 22, 1978
Appl. No.:
5/907994
Inventors:
Jeffrey L. Swartz - Brighton MA
Assignee:
Microseal Plastics Corporation - Chestnut Hill MA
International Classification:
B29C 2500, B32B 3124
US Classification:
156 82
Abstract:
A linear seal joining a plurality of polybutylene sheets is produced by (1) clamping the sheets between a pair of heat conducting members with free edges of the sheets protruding to form a relaxed skirt, (2) concentrating fusing heat on the skirt to form a tacky weld joining the free edges, and (3) subjecting the weld to an aqueous surfactant fluid by which unwanted tackiness of the weld is eliminated. Apparatus is disclosed for performing the foregoing process. A polybutylene product of the foregoing process is disclosed.