Title: Heat-sealing thermoplastic adhesive

Abstract: This invention provides a heat-sealing thermoplastic adhesive of a thermoplastic polymer which is resistant to washing and dry-cleaning, which contains from about 0.05 to about 5% by weight, based on the weight of said polymer, of at least one hydrophobic silicone compound. The invention further provides a process for heat-sealing a substrate which has been at least partly hydrophobized with a silicone compound, which comprises the steps of coating with a heat-sealing thermoplastic adhesive of a thermoplastic polymer which is resistant to washing and dry-cleaning and which contains from about 0.5 to about 5% by weight, based on the weight of said polymer, of at least one hydrophobic silicone compound, sintering, fixing and heat-sealing. The adhesives according to the invention are useful for the bonding of substrates which have been hydrophobically finished with silicone compounds, such as raincoat fabrics.

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Inventors: Hoss, Georg (Meckenheim, DE, US)
DE Jong, Eduard (St. Augustin, DE, US)

Application Number: 727512
Filing Date: 1976-09-28
Publication_date: 1979-02-27
Assignee: Plate Bonn Gesellschaft mit beschrankter Haftung (Bonn, DE)
Primary Class(es): 524/169 8/115.6, 8/DIG1, 427/195, 427/322, 427/323, 427/324, 428/447, 442/73, 442/128, 442/150, 524/265, 524/291, 528/324
Other Classes:
US Patent Ref:

2937230	May, 1960	Rogers	260/827.
3032438	May, 1962	Gaynes et al.	428/261.
3884858	May, 1975	Morawetz	260/824.
3909475	Sep, 1975	Schneider	260/29.
3919438	Nov, 1975	Urkevich	428/447.
3926885	Dec, 1975	Keil	260/29.
3929704	Dec, 1975	Horning	428/447.
3935154	Jan, 1976	Cawley	260/824.
3936578	Feb, 1976	Dumoulin et al.	260/29.
3950297	Apr, 1976	Raabe et al.	260/30.
3959203	May, 1976	Keil	260/29.
3962519	Jun, 1976	Rusch et al.	428/447.
3965057	Jun, 1976	Ammons et al.	260/29.
3975351	Aug, 1976	Etchells	260/30.
4011189	Mar, 1977	Keil	260/29.
4016328	Apr, 1977	Horning	260/29.
4052495	Oct, 1977	Uhlmann et al.	260/824.

Other Refs: 2439735

Mar, 1975	DE

Primary Examiner: Lilling, Herbert J.
Assistant Examiner:
Attorney: Jeffery; Donald D.