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Peter W Shipp Jr, Clifford M Vogt: Melt-blown material with depth fiber size gradient. Kimberly Clark Corporation, William D Herrick, December 22, 1987: US04714647 (137 worldwide citation)

A filter medium is formed by sequentially depositing layers of melt-blown thermoplastic fibers, having the same composition but different sizes, onto a collector. The resulting laminate web has a fiber size gradient across its depth so that the large particulate can be trapped across the filter's de ...


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Michael A Sciaraffa, David G Thome, Clifford M Vogt: Soft, bulky, lightweight nonwoven web and method of producing; the web has both fused spot bonds and patterned embossments. Kimberly Clark Corporation, William D Herrick, Howard Olevsky, June 8, 1982: US04333979 (127 worldwide citation)

Lightweight, pattern bonded, generally continuous filament web having physical, aesthetic, and functional attributes particularly desirable for liner material for disposable absorbent products such as diapers, sanitary napkins, and the like. In accordance with a preferred embodiment of the invention ...


3
Clifford M Vogt, Peter W Shipp Jr: Melt-blown filter medium. Kimberly Clark Corporation, William D Herrick, April 25, 1989: US04824451 (66 worldwide citation)

HEPA or pre-HEPA filter media are made by forming a web of melt-blown polypropylene fibers. The melt-blown process is accomplished at a low through-put of about 1 pound per inch of die width per hour and at a high fluid flow rate of about 250 to 325 standard cubic feet per minute. The resulting web ...


4
John T Loft, Steven G Plovan, Clifford M Vogt: Air permeable waterproof products having fabric-like aesthetic properties and methods for making the same. Celanese Corporation, January 13, 1976: US03932682 (50 worldwide citation)

Novel products are described which possess a capability of transmitting air and moisture vapor, are waterproof, and have fabric-like aesthetic properties. These products may have applications such as rainwear material, tent material, garment liners, and shoe liners. These products may be made by spr ...


5
Clifford M Vogt, Peter W Shipp Jr, Cynthia C Pendley: Disposable stove hood filter. Kimberly Clark Corporation, William D Herrick, August 25, 1987: US04689058 (42 worldwide citation)

A composite stove hood filter consists of a primary metal mesh filter and a nonwoven, secondary disposable filter. The secondary filter is a low basis weight (0.2 oz./yd..sup.2 to 1.0 oz./yd..sup.2) spun-bonded polymer sheet which is attached to the primary filter by means of elastic bands or Velcro ...


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Clifford M Vogt, Nancy D Twyman, Roe C Allen Jr: Method for making melt-blown liquid filter medium. Kimberly Clark Corporation, William D Herrick, May 15, 1990: US04925601 (27 worldwide citation)

A process for making a melt-blown nonwoven polymeric web for use as a liquid filter medium includes increasing the air (fluid) flow and the forming distance to produce a filter medium that is more bulky and more permeable and therefore resists plugging. The melt-blown process parameters include a po ...


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