John C Tolfa, Age 612594 E Whippoorwill Holw, Midland, MI 48642

6677284, Jan 13, 2004

Aug 29, 2002

10/220460

Thomas Rajewski - Auburn MI
John C. Tolfa - Midland MI
Hsinheng Li - Mt. Pleasant MI

The Lubrizol Corporation - Wickliffe OH

C10M14536

508579, 252 68

A problem with refrigeration systems using ammonia as the refrigerant and hydrocarbon lubricants is that the seals/gaskets of the systems have a tendency to harden and shrink. This can cause leakage of the refrigerant and eventually require disassembly of the equipment and replacement of the seals. The addition of a small amount polyether having an aromatic fragment of 6-18 carbon atoms or an aliphatic fragment of 10-22 carbon atoms can soften the seals and partially re-swell the seals solving the leakage problem and avoiding expensive maintenance costs. Alternatively a polyether of 1,2-butylene oxide which is more oil soluble than most other polyethers with a smaller Z group e. g. derived from alkanols of 1 to 9 carbon would be effective at reducing hardening and shrinkage.

2006002, Jan 26, 2006

Mar 25, 2003

10/509350

Saurabh Lawate - Concord OH, US
Robert Silverstein - Great Neck NY, US
John Tolfa - Midland MI, US

C08K 3/34

524492000

A process of forming a gel for gel packed transmission cable comprising the steps of dissolving a high molecular weight polymer in oil and thereafter through the use of a rotor and stator mixer effectively incorporating a colloidal silica(s) into the polymer in oil composition. Compositions made from this process having optimized viscosity are also claimed.

2006016, Jul 27, 2006

Oct 1, 2003

10/529955

Thomas Rajewski - Auburn MI, US
Kenneth Lilje - Midland MI, US
John Tolfa - Midland MI, US

C10L 1/14

508459000

Polymeric additives are disclosed for compressor lubricants which can reduce the tendency of the lubricant to become entrained in compressed gases and be carried forward as fine dispersed droplets in compressed gas systems such as compressed air, natural gas, and compression refrigeration systems.

2013006, Mar 14, 2013

May 20, 2011

13/699059

Michael John Hora - Marion IA, US
Patrick Thomas Murphy - La Grange Park IL, US
John Carl Tolfa - Midland MI, US

C10M 105/22
C09K 3/22

508459, 252 881

A method for producing a high viscosity, low volatiles blown stripped oil blend is provided. The method may include the steps of: (i) obtaining an oil blend of corn stillage oil and soybean oil having a weight ratio of corn stillage oil to soybean oil of from about 1:2 to 3:1; (ii) heating the oil blend to at least 90 C.; (iii) passing air through the heated oil blend to produce a blown oil having a viscosity of at least 50 cSt at 40 C.; and (iv) stripping the blown oil from step (iii) to reduce an acid value of the blown oil to less than 5.0 mg KOH/gram.

6267907, Jul 31, 2001

Jun 3, 1999

9/325136

John C. Tolfa - Midland MI
Thomas E. Rajewski - Bay City MI

The Lubrizol Corporation - Wickliffe OH

C09K 504

252 68

A lubricant-refrigerant composition for a compression refrigeration system is disclosed which comprises (A) carbon dioxide refrigerant, and (B) a lubricant of an aliphatic naphthalene. A supplemental lubricant comprising at least one alkyl benzene, a hydrocarbon, a polyalkylene glycol, a polyol ester or a polyvinyl ether may also be present. Additionally, a performance additive comprising an alkoxylated alcohol or phenol, an alkoxylated glycol, an alkyl phenol or a phosphorus compound may also be present.

6127324, Oct 3, 2000

Feb 19, 1999

9/253605

John C. Tolfa - Midland MI
Kenneth C. Lilje - Midland MI

The Lubrizol Corporation - Wickliffe OH

C10M11102

508463

The present invention relates to a lubricating basestock comprising a blend of (A) at least one polyalkylene glycol and (B) at least one alkyl aromatic. Additives, such as antioxidants, corrosion inhibitors, and metal deactivators, can be added to the lubricating basestock. In one embodiment, the lubricating composition is free of naphthol. The blend can also be used in combination with a variety of oils of lubricating viscosity, with or without additives therein. According to the present invention, the lubricating composition exhibits excellent oxidation and thermal stability, demulsibility, and hydrolytic stability. The lubricating composition is particularly useful as a positive displacement compressor lubricant.

2018030, Oct 25, 2018

Jun 26, 2018

16/018607

- Wayzata MN, US
John Carl Tolfa - Midland MI, US

C09J 103/02
C08L 91/00
C08K 5/00
C03C 25/321

An environmentally friendly, bio-based binder system that is useful for the formation of fiberglass insulation, the system includes: A) an aqueous curable binder composition, which includes a carbohydrate and a crosslinking agent; and B) a dedust composition, which includes a blown, stripped plant-based oil and optionally at least one emulsifying agent. The bio-based binder system is typically heated to form a cured binder system.

2015015, Jun 4, 2015

Feb 6, 2015

14/615651

- Wayzata MN, US
Patrick Thomas Murphy - La Grange Park IL, US
John Carl Tolfa - Midland MI, US

Cargill, Incorporated - Wayzata MN

C11B 3/00

A method for producing a high viscosity, low volatiles blown stripped oil blend is provided. The method may include the steps of: (i) obtaining an oil blend of corn stillage oil and soybean oil having a weight ratio of corn stillage oil to soybean oil of from about 1:2 to 3:1; (ii) heating the oil blend to at least 90 C.; (iii) passing air through the heated oil blend to produce a blown oil having a viscosity of at least 50 cSt at 40 C.; and (iv) stripping the blown oil from step (iii) to reduce an acid value of the blown oil to less than 5.0 mg KOH/gram.