# US 8,539,612 B2 · Water sports garment with stitchless seams

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- Number: US 8,539,612 B2
- Document ID: US8539612B2
- Status: Granted
- Kind: B2
- Application number: 13/101,250
- Filed: 2011-05-05
- Published: 2011-11-03
- Granted: 2013-09-24
- Earliest claimed: 2010-04-30
- Assignees: Shei Chung Hsin Ind. Co., Ltd.
- Applicants: Min-Chen Shiue
- Inventors: Min-Chen Shiue
- Web page: https://patentgrep.com/patent/US8539612B2

## CPC

- A41D 27/245: {made by welding or gluing (joining of plastics by welding or gluing B29C65/00; sewing machines for concurrently making thread and welded seams D05B17/00; thermal or chemical fixing of seams and hems D06M)}
- A41D 13/012: for aquatic activities, e.g. with buoyancy aids
- B29C 65/02: by heating, with or without pressure
- B29C 65/4815: {Hot melt adhesives, e.g. thermoplastic adhesives}
- B29C 66/0382: {the coating material being in liquid or paste form (joining by applying molten plastics B29C65/40)}
- B29C 66/1142: {Single butt to butt joints}
- B29C 66/43: {Joining a relatively small portion of the surface of said articles (B29C66/45 takes precedence)}
- B29C 66/729: {Textile or other fibrous material made from plastics}
- B29C 66/73187: {to liquids}
- B29C 35/02: Heating or curing, e.g. crosslinking or vulcanizing {during moulding, e.g. in a mould}(cold vulcanisation B29C35/18 {; vulcanising tyres, presses therefor B29D30/0601})
- B29C 65/8215: {Tensile tests}
- B29C 66/71: {characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125)}
- B29C 66/72343: {for liquids}
- B29L 2031/48: Wearing apparel
- B29L 2031/52: Sports equipment {; Games; Articles for amusement}; Toys (B29L2031/54 takes precedence)
- B63C 11/04: Resilient suits
- A41D: OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B63C: LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS (floating nets, floating slipways, or the like for recovering aircraft from the water B63B35/52)

## Abstract

A water sports garment with stitchless seams and a fabrication method thereof is provided. The stitchless seams between waterproof sheets are joined and sealed by coating a liquid sealant solution.

## Claims

### Claim 1

A water sports garment with stitchless seams, comprising: at least two waterproof sheets in contact with each other in a butt splice manner to form a stitchless seam therebetween; and at least a waterproof strip covering the stitchless seam to join and seal the two waterproof sheets, wherein the formulation of the waterproof strip comprises: 100 parts by weight of a synthetic elastomer; 5-9 parts by weight of a vulcanizing agent; and 2.6-3.2 parts by weight of an antioxidant package.

### Claim 2 (depends on 1)

The water sports garment of claim 1, wherein the synthetic elastomer comprises polychloroprene.

### Claim 3 (depends on 1)

The water sports garment of claim 1, wherein the vulcanizing agent is MgO, ZnO or a combination thereof.

### Claim 4 (depends on 1)

The water sports garment of claim 1, wherein the antioxidant package can be Nickel N,N-di-alkyl-aminodithiocarboxylate, 4,4′-bis(2,2-dimethylbenzyl) diphenylamine, or a combination thereof.

### Claim 5 (depends on 1)

The water sports garment of claim 1, wherein the waterproof sheets each is a foamed rubber sheet, or a foamed rubber layer laminated with one or two fabric layers.

### Claim 6 (depends on 1)

The water sports garment of claim 1, wherein the width of the waterproof strip is 3-15 mm.

### Claim 7 (depends on 1)

The water sports garment of claim 1, wherein the thickness of the waterproof strip is 0.3-1.2 mm.

### Claim 8

A method of fabricating water sports garment, comprising: preparing a liquid sealant solution having a viscosity of 200,000-500,000 cps, wherein the formulation of the liquid sealant solution comprises: 100 parts by weight of a synthetic elastomer; 5-9 parts by weight of a vulcanizing agent; 2.6-3.2 parts by weight of an antioxidant package; and solvents; coating the liquid sealant solution onto a stitchless seam between two waterproof sheets to form a waterproof strip; and vulcanizing the waterproof strip.

### Claim 9 (depends on 8)

The method of claim 8, wherein the synthetic elastomer comprises polychloroprene.

### Claim 10 (depends on 8)

The method of claim 8, wherein the vulcanizing agent is MgO, ZnO or a combination thereof.

### Claim 11 (depends on 8)

The method of claim 8, wherein the antioxidant package can be Nickel N,N-di-alkyl-aminodithiocarboxylate, 4,4′-bis(2,2-dimethylbenzyl) diphenylamine, or a combination thereof.

### Claim 12 (depends on 8)

The method of claim 8, wherein the solvent is toluene, xylene, or a combination thereof.

### Claim 13 (depends on 8)

The method of claim 8, wherein the vulcanizing temperature is 80-150.degree. C.

### Claim 14 (depends on 8)

The method of claim 8, wherein the vulcanizing time is 5-60 minutes.

### Claim 15 (depends on 8)

The method of claim 8, wherein the width of the waterproof strip is 3-15 mm.

### Claim 16 (depends on 8)

The method of claim 8, wherein the thickness of the waterproof strip is 0.3-1.2 mm.