3m Innovative Properties Company

Xiaoshuan Fu

Rui Chen

Andrew R Fox

Zhiqun Zhang

Feng Xu

Tien T Wu

Liang Cheng

Sachin Talwar

Qiang Xu

Jean Le Normand

Chiaki Hanamaki

Yue Ge

Jinzhang You

Jin Zhang You

Guo Tong Zhao

Hong Bing Xiang

Hendrik Both

Robin Xiang

A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0%, to at least 3.0%, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web. e.g. as a filter media or a layer thereof.

Air-filter media including a relofted spunbonded web, and methods of making and using

A thermally stable nonwoven web including blended-polymer meltblown fibers containing a blend of poly (butylene terephthalate) and poly (ethylene terephthalate).

Thermally stable nonwoven web comprising meltblown blended-polymer fibers

A method for producing a fluffy temperature regulating warmth retention material and the fluffy temperature regulating warmth retention material produced therefrom are disclosed. The method comprises: selecting a low melting point fiber and an additional fiber; carding to form a single web; spray coating a phase change material along at least part of the length of a surface of the single web; lapping layer by layer of the single web; and performing a heat setting reinforcement to form the warmth retention material. According to the present invention, a fluffy temperature regulating warmth retention material comprising an appropriate ratio of a phase change material may be obtained and the material exhibits a satisfactory temperature regulating effect, and meanwhile, it can maintain, to the full extent, or is close to, the original filling power and soft hand feeling where no phase change material is incorporated. In addition, the phase change material can be retained very well within the fluffy temperature regulating warmth retention material and thus has a wash resistance property.

Method for producing a fluffy temperature regulating warmth retention material and fluffy temperature regulating warmth retention material

A non-woven electret fibrous web for electrostatic adsorption and odor elimination and the preparation process thereof. In certain exemplary embodiments, the non-woven electret fibrous web includes a multiplicity of electret fibers, at least one of a plurality of photo-catalytic fibers or a plurality of multi-component fibers; and optionally, at least one of a plurality of chemically-active particulates, a plurality of carbon-based fibers, or a plurality of mono-component thermoplastic fibers. In other exemplary embodiments, carding and cross-lapping or air-laying processes are disclosed for making nonwoven fibrous webs including electret fibers and one or more of photocatalytic fibers, chemically-active particulates, multi-component fibers, mono-component thermoplastic fibers, or carbon-based fibers. In some exemplary embodiments, exemplary non-woven electret fibrous webs of the disclosure exhibit superior gas permeation characteristics, high adsorption characteristics for airborne contaminants, as well as an odor elimination function.

Non-woven electret fibrous webs and methods of making same

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Shanghai, China

Xiaoshuan Fu