DANIEL GRAIVER
Pilots at Perrine Rd, Midland, MI

5708115, Jan 13, 1998

Feb 11, 1997

8/798990

Daniel Graiver - Midland MI
Aaron Quoc Khieu - Coon Rapids MN
Binh Thanh Nguyen - Midland MI

Dow Corning Corporation - Midland MI

C08G 7714

528 32

A method in which radical polymerization of a vinyl monomer is initiated by an ozonide group attached to a silane or a siloxane polymer. The method is particularly useful for preparing organic polymers having a silicone chain end, or for preparing wide ranges of silicone/organic polymers and copolymers with varied architecture, i. e. , ABA block copolymers, comb polymers, star polymers, and hyper-branched polymers. In one embodiment, the method is carried out by simply heating a vinyl monomer in the presence of a silane containing ozonide functionality. The ozonide silane is obtained by exposing silanes or siloxanes having an alkyl group containing a double bond to ozone. Surprisingly, an ozonide attached to an organosilicon compound was found to be stable, and capable of initiating vinyl polymerization upon heating to moderate temperatures, i. e. , about 70. degree. C.

5969173, Oct 19, 1999

Dec 1, 1998

9/203317

Stephen Ross Clarke - Morphett Vale, AU
Daniel Graiver - Midland MI
Janis Gunars Matisons - Marion, AU
Michael James Owen - Midland MI

Dow Corning Corporation - Midland MI

C02F 708

556459

Dialkali metal organosilanolate and dialkali metal organosiloxanolate salts are manufactured from cyclic siloxanes or linear silicone polymers using a heterogeneous interfacial reaction process. A stoichiometric excess of an alkali metal hydroxide such as potassium hydroxide or an alkali metal oxide as a solid or dissolved or dispersed in a compatible solvent, is prepared and used as a first phase. The cyclic siloxane or linear silicone polymer is placed in a second phase either dissolved or dispersed in another solvent which is immiscible with the first phase. The resulting silanolate and siloxanolate salts can be used as monomers for solid-liquid phase and liquid-liquid phase interfacial polymerization or in a polycondensation process for the synthesis of alternating siloxane polymers. They can also be used as ring opening initiators for the base catalyzed polymerization of cyclic siloxanes.

5789516, Aug 4, 1998

Apr 7, 1997

8/826716

Daniel Graiver - Midland MI
Aaron Quoc Khieu - Coon Rapids MI
Binh Thanh Nguyen - Midland MI

Dow Corning Corporation - Midland MI

C08G 7706

528 19

A method of manufacturing block copolymers containing a polyorganosiloxane segment, by dual polymerization involving (i) polycondensation of a silicone block followed by (ii) the free radical polymerization of a monomer that can be polymerized by free radical polymerization, such as a vinyl containing organic monomer. Initiation of free radical polymerization in step (ii) is carried out with a carbonyl functional group attached to the silicone polymer block. The carbonyl functional silicone polymer, preferably an aldehyde functional silicone polymer, is included as one component of a copper-based Redox initiating system. The method ensures no free homopolymerization, complete reactivity, and various polymer architectures are possible, including for example, polymeric structures such as AB, ABA, (AB). sub. n, brush, and radiant types. The method is fast, effective, convenient, and easier to control than typical ionic polymerization techniques.

5629401, May 13, 1997

Apr 1, 1996

8/626711

Daniel Graiver - Midland MI
Arnold W. Lomas - Rhodes MI

Dow Corning Corporation - Midland MI

C08G 7700

528 43

An interfacial polymerization process wherein organosilicon reactants are dissolved in mutually immiscible, nonaqueous solvents, and a condensation product is formed at the interface. This technique has many of the advantages of analogous organic interfacial polymerization, and may be used, for example, to prepare crosslinked films, fibers, particles, or encapsulants. Structures which cannot be prepared by other routes can be made. In particular, a well-defined alternating dimethyl/diphenyl siloxane block copolymer can be prepared by condensing a dihalo organosilicon compound such as diphenyldichlorosilane (C. sub. 6 H. sub. 5). sub. 2 SiCl. sub. 2 in diphenyl ether with a dimethyl silanolate in cyclohexane. The advantages are ability to control polymer structure, and there is no rearrangement during polymerization.

4891389, Jan 2, 1990

Jun 26, 1989

7/371481

Daniel Graiver - Midland MI
Robert E. Kalinowski - Auburn MI

Dow Corning Corporation - Midland MI

C08J 928

521 64

Aesthetically attractive, free standing dispensers for the controlled release of volatile liquid materials such as perfumes and fragrances into the atmosphere consist essentially of composite hydrogels comprising a continuous phase of a solubilized polyvinyl alcohol, a dispersed phase comprising a polyelectrolyte and an aqueous solution of the volatile liquid that is distributed between said continuous and dispersed phases. The exterior surfaces of the dispenser remain dry to the touch throughout its useful life.

4824890, Apr 25, 1989

Feb 2, 1988

7/151666

Shedric O. Glover - Midland MI
Daniel Graiver - Midland MI

Dow Corning Corporation - Midland MI

C08K 320

524253

A curable, reinforced polydiorganosiloxane microemulsion is prepared by adding from 5 to 30 parts by weight of colloidal silica per 100 parts by weight of polydiorganosiloxane in the microemulsion and from 1 to 5 parts by weight of dialkyltindicarboxylate catalyst per 100 parts by weight of the microemulsion to polydiorganosiloxane microemulsion. The curable, reinforced polydiorganosiloxane emulsion can be cast into coherent, elastomeric films of less than 0. 4 micrometer thickness.

4609486, Sep 2, 1986

Feb 25, 1985

6/704976

Alan L. Freiberg - Midland MI
Daniel Graiver - Midland MI
Thomas F. Lim - Midland MI
Antony P. Wright - Rhodes MI

Dow Corning Corporation - Midland MI

B01J 1300, C08L 8306, C09D 534

252310

The shelf life of an aqueous, anionic silicone emulsion, which contains an organic tin compound and which forms an elastomer upon removal of the water, is improved by the addition of an additive. The additive is selected from the group consisting of alkyl mercaptan, 8-quinolinol, thioglycolic acid, and salts of thioglycolic acid. Elastomers produced by removing the water from these emulsions, once shelf aged, have more consistent physical properties than do elastomers produced from similar emulsions not containing the additives.

5429839, Jul 4, 1995

Jul 19, 1993

8/093548

Daniel Graiver - Midland MI
Toshiyuki Okada - Midland MI
Samir D. Serrano - Midland MI

Mizu Systems - Midland MI

B65B 3300

427155

Coatings of hydrophilic organic polymers such as polyvinyl alcohol are grafted to substrates formed from hydrophobic organic polymers and polyorganosiloxanes by exposing the surface of the substrate to an aqueous solution of the hydrophilic poller in the presence of a solubilized compound of tetravalent cerium that preferably contains hydroxyl or amino groups as ligands.

5891548, Apr 6, 1999

Oct 3, 1996

8/725044

Daniel Graiver - Midland MI
Udo C. Pernisz - Midland MI

Dow Corning Corporation - Midland MI

B32B 500, C08L 8300

428 98

A curable silicone is used to encapsulate porous, photoluminescing silica nanoparticles having three-dimensional, web-like structures. The encapsulation protects the silica nanoparticles, preserves their photoluminescent effect, and can be used as a coating. The composition is used to prepare articles of manufacture by casting it on a substrate such as glass or a silicon wafer and curing it. Special effects can be obtained by using a mask on the substrate prior to deposit of nanoparticles and curing the silicone matrix.

5880304, Mar 9, 1999

Mar 6, 1997

8/813025

Daniel Graiver - Midland MI
Aaron Quoc Khieu - Coon Rapids MN
Binh Thanh Nguyen - Midland MI

Dow Corning Corporation - Midland MI

C07F 704

556442

Organosilicon aldehydes and ketones are prepared by a method in which an organosilicon compound containing ozonide functionality is first formed by exposing an organosilicon compound containing unsaturation to ozone. The organosilicon compound containing ozonide functionality is then reduced to the corresponding organosilicon aldehyde or ketone with a reducing agent. One preferred reducing agent is a combination of zinc and acetic acid. Complete conversion of the ozonide to the carbonyl (. dbd. C. dbd. O) compound is obtained when the ozonide containing the reducing agent is heated briefly to about 30. degree. C.