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US 4,803,109 AGranted
Method for protection and waterproofing of stitch lines in padding and padded garments
OwnerLucio Saniscalchiinventor
Life of this patent
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Abstract
A method of waterproofing the stitch lines of padding material having a high degree of thermal insulation, usable in clothing and the like comprises the step of applying a tape composed of a support layer of polyamide fibre fabric, a waterproofing layer of polyurethane resin, and an adhesive layer of great adhesion and cohesion and based on elastomers.
Claims2
A method for the protection and waterproofing of lines of stitching between connected pieces of padding having a high degree of thermal insulation, comprising the steps of
- providing a self-adhesive tape having an adhesive side and an opposite non adhesive side;
- cold applying, by contact, over said lines of stitching said adhesive side of said self-adhesive tape, said self adhesive-tape having
- a support layer, a cladding of waterproofing synthetic resin coated on said non adhesive side of said self-adhesive tape and an elastomer based self-adhesive layer coated on said adhesive side, wherein said support layer is made from a polyamide fibre fabric of between 50 and 60 grammes/meter, said cladding of waterproofing synthetic resin is made of a polyurethane resin applied at a rate of 5-15 grammes/square meter and said elastomer based self-adhesive has the following formulation in parts by weight:
- ______________________________________ natural rubber 20.000 antioxidant (sterically inhibited 0.100 polyphenol) active zinc oxide 2.000 zinc resinate 1.500 stearic acid 0.100 hydrogenated polycyclodiene 9.000 hydrocarbon resin aliphatic hydrocarbon resin 2.000 with cyclic structure polyaliphatic hydrocarbon resin 5.000 reactive alkylphenolic resin 3.500 terpene phenolic resin 2.000 polyvynil isobutyl ether 2.000 (60% in benzene) hexane 50.000 toluene 50.000 methyl alcohol 2.000. ______________________________________
1 more element
Dependencies are inferred from the claim text.