1
Shih Lai Lu, Todd R Williams: Microstructure-bearing composite plastic articles and method of making. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Steven E Skolnick, December 29, 1992: US05175030 (284 worldwide citation)

A microstructure-bearing composite plastic article can be superior, both in microstructure and in physical properties, when it is a composite of a tough, flexible substrate, at a surface of which is microstructure formed of a cured oligomeric resin having hard segments and soft segments, which cured ...


2
Shih Lai Lu: Method of molding microstructure bearing composite plastic articles. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Steven E Skolnick, February 2, 1993: US05183597 (209 worldwide citation)

A microstructure-bearing composite plastic article can be superior, both in microstructure and in physical properties, when it is a composite of a tough, flexible substrate, at a surface of which is microstructure formed of a cured oligomeric resin having hard segments and soft segments, which cured ...


3
Shih Lai Lu: Plano-convex base sheet for retroreflective articles and method for making same. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Robert H Jordan, October 19, 1993: US05254390 (104 worldwide citation)

An article comprising a transparent plano-convex base sheet having first and second broad faces, the second face being substantially planar and the first face having an array of substantially hemi-spheroidal microlenses thereon, the shape of the microlenses and thickness of the base sheet being such ...


4
Shih Lai Lu: Optical security articles and methods for making same. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Peter L Olson, January 7, 1997: US05591527 (84 worldwide citation)

Optical security articles and methods of making same are described comprising a first layer substantially transparent to visible light and having a first refractive index, the first layer having a relief pattern on a first surface thereof and a substantially smooth second surface, and an adhesive la ...


5
Shih Lai Lu: Method for making a flexible louvered plastic film with protective coatings and film produced thereby. Minnesota Mining and Manufacturing Company, Donald M Sell, Stephen W Buckingham, August 23, 1988: US04766023 (41 worldwide citation)

Louvered plastic film can be more easily handled and installed by coating at least one surface with a solvent-free monomer composition and exposing the coating to ultraviolet radiation to polymerize the composition.


6
Shih Lai Lu: Retroreflective article comprising a transparent base sheet and nacreous pigment coating, method for making such a base sheet, and method for making a forming master. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Robert H Jordan, November 21, 1995: US05468540 (38 worldwide citation)

A retroreflective article comprising a transparent base sheet having first and second broad faces, the second face being substantially planar and the first face having an array of substantially hemi-spheroidal microlenses thereon, the microlenses being wider and shorter than portions of true spheres ...


7
Robert C Brown, Shih Lai Lu: Nontacky acrylonitrile/butadiene adhesive tape. Minnesota Mining and Manufacturing Company, Donald M Sell, Walter N Kirn, Richard E Brink, December 11, 1990: US04977003 (36 worldwide citation)

Adhesive tape, the adhesive layer of which comprises a copolymer of (a) acrylonitrile and (b) butadiene and/or isoprene. Even though such an adhesive copolymer layer is usually substantially nontacky, it forms under moderate pressure bonds to many substrates which become stronger than the substrates ...


8
Lynn E Faykish, Shih Lai Lu: Article with holographic and retroreflective features. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Peter L Olson, August 12, 1997: US05656360 (36 worldwide citation)

An article is disclosed having both holographic and retroreflective features. The article includes a holographic layer that is perceptible under normal lighting conditions and substantially imperceptible to the unaided eye under retroreflective lighting conditions, a retroreflective layer perceptibl ...


9
Shih Lai Lu, James J Kobe, John D Moon, Maurice E Freeman, Forrest J Rouser, Robert V Heiti, Thomas E Boettcher: Reclosable mechanical fastener based on a composite article. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, David L Weinstein, March 23, 1993: US05196266 (36 worldwide citation)

A reclosable mechanical fastener comprising a fastening component having a surface structure by which two such fastening components can become releasably attached. The novel fastening component is a composite of a tough substrate and a fastening layer that forms said surface structure, which fasteni ...


10
Shih Lai Lu: Security card and method for making same. 3M Innovative Properties Company, Peter L Olson, August 29, 2000: US06110864 (33 worldwide citation)

A security card comprising a backing, a cover film, and a security image, the security image being located between the backing and the cover film, the backing and the cover film being laminated together without an intermediate adhesive layer, wherein the backing comprises an amorphous copolyester or ...