# US 2025/0083408 A1 · Stretchy thermal insulation composite material

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- Number: US 2025/0083408 A1
- Document ID: US20250083408A1
- Status: Published application
- Kind: A1
- Application number: 18/954,709
- Filed: 2024-11-21
- Published: 2025-03-13
- Earliest claimed: 2022-06-14
- Assignees: Shinih Enterprise Co., Ltd.
- Applicants: Shinih Enterprise Co., Ltd.
- Inventors: Jung-Fu CHIEN; Chung-Shan PENG; Ping-Yu CHIU; Kai-Chih CHUNG
- Web page: https://patentgrep.com/patent/US20250083408A1

## CPC

- B32B 5/022: {Non-woven fabric}
- B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)}
- A41D 31/065: {using layered materials}
- B32B 5/04: characterised by a layer being specifically extensible by reason of its structure or arrangement {, e.g. by reason of the chemical nature of the fibres or filaments}
- B32B 5/08: the fibres or filaments of a layer being of different substances {, e.g. conjugate fibres, mixture of different fibres}
- B32B 5/268: {characterised by at least one non-woven fabric layer that is a melt-blown fabric}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/02: in the form of fibres or filaments {(not used)}
- B32B 27/12: next to a fibrous or filamentary layer
- B32B 27/36: comprising polyesters
- B32B 27/40: comprising polyurethanes
- D04H 1/4374: using different kinds of webs, e.g. by layering webs
- D04H 1/4391: characterised by the shape of the fibres
- B32B 2250/02: 2 layers
- B32B 2250/03: 3 layers
- B32B 2250/20: All layers being fibrous or filamentary
- B32B 2262/0207: Elastomeric fibres
- B32B 2262/0246: Acrylic resin fibres
- B32B 2262/0253: Polyolefin fibres
- B32B 2262/0261: Polyamide fibres
- B32B 2262/0276: Polyester fibres
- B32B 2262/0284: Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
- B32B 2262/0292: Polyurethane fibres
- B32B 2262/062: Cellulose fibres, e.g. cotton
- B32B 2262/065: Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
- B32B 2262/12: Conjugate fibres, e.g. core/sheath or side-by-side
- B32B 2262/14: Mixture of at least two fibres made of different materials
- B32B 2266/0278: Polyurethane
- B32B 2307/304: Insulating
- B32B 2307/51: Elastic
- B32B 2307/718: Weight, e.g. weight per square meter
- B32B 2307/724: Permeability to gases, adsorption
- B32B 2307/732: Dimensional properties
- B32B 2437/00: Clothing
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- A41D: OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- D04H: MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL (weaving D03; knitting D04B; braiding D04C; net-making D04G; sewing D05B; tufting D05C; finishing non-woven fabrics D06); FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING {; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION}(non-woven fabrics having an intermediate or external layer of a different kind, e.g. of woven fabric, B32B)

## Abstract

The present invention provides a stretchy thermal insulation composite material having good stretchability, thermal insulation capability and durability, which comprises a thermal insulation layer and a melt-blown layer; wherein the thermal insulation layer has a unit weight of 20 gsm to 300 gsm and comprises a thermal insulation fiber; the melt-blown layer is disposed on the thermal insulation layer, which has a unit weight of 15 gsm to 100 gsm and comprises an elastic melt-blown fiber; wherein part of the thermal insulation fiber and part of the elastic melt-blown fiber link to each other at an interface between the thermal insulation layer and the melt-blown layer; the material of the elastic melt-blown fiber is an elastic polymer material, which is virgin or recycled; the elastic polymer material is selected from the group consisting of thermoplastic polyurethane, thermoplastic polyester elastomer, polytrimethylene terephthalate and a combination thereof, and the elastic melt-blown fiber has a diameter of 0.1 μm to 35 μm.

## Claims

### Claim 1

A stretchy thermal insulation composite material, comprising:
a thermal insulation layer, which has a unit weight of 20 gsm to 300 gsm and comprises a thermal insulation fiber; and
a melt-blown layer disposed on the thermal insulation layer, which has a unit weight of 15 gsm to 100 gsm and comprises an elastic melt-blown fiber;
wherein, part of the thermal insulation fiber and part of the elastic melt-blown fiber link to each other at an interface between the thermal insulation layer and the melt-blown layer; the material of the elastic melt-blown fiber is an elastic polymer material, which is virgin or recycled; the elastic polymer material is selected from the group consisting of thermoplastic polyurethane, thermoplastic polyester elastomer, polytrimethylene terephthalate and a combination thereof; and the elastic melt-blown fiber has a diameter of 0.1 μm to 35 μm.

### Claim 2 (depends on 1)

The stretchy thermal insulation composite material as claimed in claim 1, wherein the material of the thermal insulation fiber is a fiber material, which is virgin or recycled; the fiber material is selected from the group consisting of polyethylene terephthalate, polytrimethylene terephthalate and a combination thereof.

### Claim 3 (depends on 2)

The stretchy thermal insulation composite material as claimed in claim 2, wherein the thermal insulation layer further comprises a glue, a low melting point fiber, or a combination thereof.

### Claim 4 (depends on 3)

The stretchy thermal insulation composite material as claimed in claim 3, wherein the low melting point fiber has a melting point of 110° C. to 170° C.

### Claim 5 (depends on 3)

The stretchy thermal insulation composite material as claimed in claim 3, wherein the material of the glue is a water-based acrylic resin or a water-based polyurethane resin.

### Claim 6 (depends on 1)

The stretchy thermal insulation composite material as claimed in claim 1, wherein in the elastic polymer material, the thermoplastic polyurethane has a melting point ranging from 150° C. to 190° C.; the thermoplastic polyester elastomer has a melting point ranging from 210° C. to 240° C.; and the polytrimethylene terephthalate has a melting point ranging from 245° C. to 265° C.

### Claim 7 (depends on 1)

The stretchy thermal insulation composite material as claimed in claim 1, wherein the stretchy thermal insulation composite material has a CLO value/thickness of 1.50 CLO/cm or more.

### Claim 8 (depends on 1)

The stretchy thermal insulation composite material as claimed in claim 1, wherein the stretchy thermal insulation composite material has a washing shrinkage in machine direction of 1.5% or less, and a washing shrinkage in cross direction of 2.5% or less.

### Claim 9 (depends on 1)

The stretchy thermal insulation composite material as claimed in claim 1, wherein the stretchy thermal insulation composite material has a compression resilience of 80% or more.

### Claim 10 (depends on 1)

The stretchy thermal insulation composite material as claimed in claim 1, wherein the stretchy thermal insulation composite material has a stretchability in machine direction of 15% or more, and a stretchability in cross direction of 20% or more.