Skeletal polyurethane foam and method of making same

• US 3,165,483 A
• Filed: 02/23/1961
• Issued: 01/12/1965
• Est. Priority Date: 02/23/1961
• Status: Expired due to Term

• Current Assignee: Paul G. Gemeinhardt, Stanley A. Bingham
• Original Assignee: Paul G. Gemeinhardt, Stanley A. Bingham
• Inventors: Gemeinhardt, Paul G., Bingham, Stanley A.
• Application Number:
  US04/090,907
• Time in Patent Office: 1,419 Days
• US Class Current: 521/112
• CPC Class Codes: C08G 18/36 Hydroxylated esters of higher fatty acids
• CPC Class Codes: C08G 18/48 Polyethers
• CPC Class Codes: C08G 2110/005 < 50kg/m3
• CPC Class Codes: C08G 2110/0083 prepared using water as the sole blowing agent
• CPC Class Codes: C08G 2340/00 Filter material
• CPC Class Codes: C08J 2375/04 Polyurethanes
• CPC Class Codes: C08J 9/0014 Use of organic additives
• CPC Class Codes: C08K 5/01 Hydrocarbons C08K5/0091 takes precedence
• CPC Class Codes: C08K 5/02 Halogenated hydrocarbons C08K5/0091 takes precedence
• CPC Class Codes: C08K 5/07 Aldehydes; Ketones
• CPC Class Codes: C08K 5/09 Carboxylic acids; Metal salts thereof; Anhydrides thereof
• CPC Class Codes: C08L 75/04 Polyurethanes
• CPC Class Codes: C08L 83/04 Polysiloxanes

Claims

1. THE METHOD OF MAKING A SKELETAL CELLULAR POLYURETHANE PLASTIC WHICH COMPRISES REACTING (A) AN ORGANIC POLYISOCYANATE WITH (B) A MEMBER SELECTED FROM THE GROUP CONSISTING OF CASTOR OIL AND A POLYHYDRIC POLYALKYLENE ETHER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 285, IN THE PRESENCE OF A BLOWING AGENT, AN ALKYL SILANE OXYALKYLENE BLOCK COPOLYMER AND FROM ABOUT 10 TO ABOUT 40 PARTS PER HUNDRED PARTS OF (B) OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF HYDROCARBONS HAVING FROM 7 TO 70 CARBON ATOMS, HALOGEN SUBSTITUTED HYDROCARBONS HAVING FROM 7 TO 70 CARBON ATOMS, ESTERS OF EQUIVALENT AMOUNTS OF CARBOXYLIC ACIDS AND ALCOHOLS BASED ON THE -OH AND -COOH GROUPS, ALDEHYDES HAVING FROM 4 TO 18 CARBON ATOMS AND KETONES HAVING FROM 5 TO 18 CARBON ATOMS, SAID ADDITIVE HAVING A BOILING POINT OF AT LEAST ABOUT 100* C. AND BEING FREE OF GROUPS WHICH ARE REACTIVE WITH AN ORGANIC POLYISOCYANATE.