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Marvin H Lehr

from Austin, TX
Age ~92
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Related to:
William M Bosworth, 54David Stuart Binnie, 54Gail A Jones, 74James Schave, 68Laurena M Fraser, 59Riley Conover, 34Loredana Casey, 57Pietera Pincock, 32
Connected to:
Brenda S Lehr, 74Carrie Lehr, 62Chanda M Lehr, 68Chelsea L Lehr, 31Damon P Lehr, 38Doreen M Lehr, 87Elaine Lehr, 78Elsie B Lehr, 110Gregg A Lehr, 71Herman W Lehr, 75

Marvin Lehr Phones & Addresses

  • 13230 Fieldstone Loop, Austin, TX 78737 (512) 288-4245
  • 1252 Briarhill Dr, Akron, OH 44333 (330) 666-8509
  • Oberlin, OH
  • Dobbin, TX
  • Hays, TX

Publications

Us Patents

Ternary Alloys Of Poly(Vinyl Chloride) With High Heat Distortion Temperatures

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US Patent:
53548124, Oct 11, 1994
Filed:
Nov 6, 1992
Appl. No.:
7/973011
Inventors:
Lynn M. Soby - Brecksville OH
Marvin H. Lehr - Akron OH
Elmer D. Dickens - Richfield OH
Murali Rajagopalan - Avon Lake OH
William S. Greenlee - Avon Lake OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
C08L 2706
US Classification:
525239
Abstract:
Ternary alloys of PVC/CPVC/alloying polymers are disclosed which make use of the unexpected results of interactions between alloying polymers and CPVC and PVC, interactions which result in higher heat distortion temperatures than predictable by linear addition of the properties of the binary blends of PVC/CPVC and PVC/alloying polymer systems. This effect allows replacement of substantial amounts of alloying polymer with a predetermined amount of CPVC without changing substantially HDT or melt viscosity. Such effects allow the use of these ternary alloys in place of binary PVC/alloying polymer systems in injection molding and extrusion applications.

Impact Modified Vinyl Chloride Polymer Composition

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US Patent:
41614720, Jul 17, 1979
Filed:
Jan 23, 1978
Appl. No.:
5/871665
Inventors:
Marvin H. Lehr - Bath OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
C08L 5104
C08L 5302
US Classification:
525 4
Abstract:
Polyvinyl chloride (PVC) resin is compounded with a conventional impact modifier referred to herein as a "co-modifier", and a block copolymer "ultra-modifier" which together provide a composition of unexpectedly enhanced impact strength. Irrespective of the characteristic particle size distribution of the co-modifier, which may be normal, bimodal or neither, the combination of ultra-modifier and co-modifier produces a broad distribution of small and large modifier particles. Better impact strength than with either small particles alone, or large particles alone is thus obtained. The ultra-modifier, which synergistically increases the impact strength of conventionally impact-modified vinyl chloride polymer compositions, consists essentially of a block copolymer of a vinyl aromatic compound and a conjugated diene, such as a styrene-diene (SD) diblock copolymer, or styrene-diene-styrene (SDS) block copolymer; the ultra-modifier is a polyblock copolymer, including linear diblock, triblock, tetrablock copolymers, and radial block copolymers including triblock and tetrablock copolymers. The co-modifier may be any elastomer additive, preferably a nucleated rubbery graft copolymer.

Method Of Treating The Surface Of Polymers With A Cuprous Compound To Form A Copper Sulfide Composite Structure

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US Patent:
48636355, Sep 5, 1989
Filed:
May 5, 1988
Appl. No.:
7/190559
Inventors:
Marvin H. Lehr - Akron OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
H01B 106
US Classification:
252518
Abstract:
A method for making a conductive polymer for static charge dissipation, electromagnetic induction shielding, electroplating, or making a semiconductor comprises uniformly mixing into any number of polymer or polymer blends which are in a molten or semimolten state about 1 to about 30% by weight of sulfur to form a polymer/sulfur blend. Once the polymer/sulfur blend is solidified, by cooling, it is exposed to an aqueous cuprous ion solution whereby the cuprous ions react with the sulfur in the polymer/sulfur blend to form copper sulfide dendrites within the polymer. The aqueous cuprous ion solution may also contain elemental sulfur to aid in the formation of the copper sulfide. Additionally, the aqueous cuprous ion solution may also contain an effective amount of dilute hydrochloric acid or dilute ammonium hydroxide to aid in the facilitation of complexation. The conductive polymers of the present invention have a resistivity of less than about 10,000 ohms/sq. and preferably less than about 400 ohms/sq.

Method And Composition For Improved Melt Processability Of Chlorinated Polyvinyl Chloride

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US Patent:
48473316, Jul 11, 1989
Filed:
Jan 22, 1986
Appl. No.:
6/821301
Inventors:
Marvin H. Lehr - Akron OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
C08L 3306
US Classification:
525227
Abstract:
A composition of matter comprising a blend of CPVC having a chlorine content of between about 60% and 66% by weight and a polymethylmethacrylate content of between about 0% and 80% by weight of the blend. The composition of matter displays substantially single, homogeneous phase behavior with the CPVC and polymethylmethacrylate being substantially or completely miscible. Blending of CPVC and polymethylmethacrylate provides a reulting blended polymeric material having enhanced temperature and durability properties. Melt processability of CPVC polymeric material may be enhanced by the inclusion of polymethylmethacrylate to form the blends.

Stabilization Of Vinyl Chloride Polymers

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US Patent:
47119217, Dec 8, 1987
Filed:
Oct 10, 1986
Appl. No.:
6/917879
Inventors:
Marvin H. Lehr - Bath OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
C08K 557
US Classification:
524180
Abstract:
The invention provides an improved heat stabilization of post-chlorinated vinyl chloride polymers utilizing barium carbonate or cadmium carbonate that has a surface area greater than 2M. sup. 2 /g.

Pigmented Vinyl Chloride Polymer Or Blend Thereof Having Improved Mechanical Properties

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US Patent:
48207500, Apr 11, 1989
Filed:
Feb 11, 1988
Appl. No.:
7/154828
Inventors:
Marvin H. Lehr - Akron OH
John V. Standish - Cleveland OH
Assignee:
The B.F. Goodrich Company - Akron OH
International Classification:
G08K 906
US Classification:
523213
Abstract:
The cohesion, creep resistance and yield strength of pigmented chlorinated polyvinyl chloride resin, polyvinyl chloride resin, or blends thereof is improved by coating the pigment with an amino silane coupling agent prior to blending the resin and the pigment.

Reduced Melt Viscosity Cpvc Blends Containing Sulfur And Various Metal Carbonate Stabilizers

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US Patent:
47804971, Oct 25, 1988
Filed:
Feb 12, 1988
Appl. No.:
7/155384
Inventors:
Marvin H. Lehr - Akron OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
C08K 326
C08K 714
C08K 706
C08L 2724
US Classification:
524424
Abstract:
Chlorinated polyvinyl chloride when blended with sulfur is often miscible and has reduced melt flow viscosity. Various metal carbonates impart improved stability and optionally various fibers can be utilized to increase the tensile strength of the composition.

Impact Modified Polymer Composition

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US Patent:
41816447, Jan 1, 1980
Filed:
Mar 23, 1978
Appl. No.:
5/889458
Inventors:
Marvin H. Lehr - Bath OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
C08K 714
C08L 5300
US Classification:
260 4218
Abstract:
Chlorinated polyvinyl chloride resin (CPVC) is blended with a block copolymer of styrene and a diene (SD) or of styrene-diene-styrene (SDS), which block copolymer is referred to as a "pro-modifier" because, by itself, it performs a dual function of processing aid and impact modifier in CPVC. For tailoring specific desirable impact properties and physical characteristics into a CPVC resin composition, it may be desirable to use a conventional impact modifier in combination with the block copolymer. When the block copolymer is so used, such use being referred to as that of a "co-modifier", the block copolymer and conventional impact modifier provide a CPVC composition with unexpectedly enhanced impact strength. The block copolymer consists essentially of a vinyl aromatic compound and a conjugated idene, such as styrene-diene (SD) diblock copolymer, or a styrene-diene-styrene (SDS) polyblock copolymer having a linear or radial block structure, or mixtures of linear and radial block copolymers. When a conventional impact modifier is used, it may be any elastomer additive, preferably a nucleated rubbery graft copolymer, but a minor quantity by weight of a synthetic resinous interpolymer which contains no rubber polymer, may also be used.
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Marvin H Lehr from Austin, TX, age ~92 Get Report