Mold release composition

• US 4,840,675 A
• Filed: 09/26/1988
• Issued: 06/20/1989
• Est. Priority Date: 12/25/1981
• Status: Expired due to Term

• Current Assignee: Daikin Kogyo Co., Ltd. (Daikin Industries Ltd)
• Original Assignee: Daikin Kogyo Co., Ltd. (Daikin Industries Ltd)
• Inventors: Aoyama, Hirokazu, Shinjo, Masayoshi, Fukui, Shosin
• Primary Examiner(s): Morris, Theodore
• Application Number:
  US07/249,191
• Time in Patent Office: 267 Days
• Field of Search: 106/38.22, 264/130, 264/338, 264/264, 264/300
• US Class Current: 106/38.22
• CPC Class Codes: B29C 33/60 Releasing, lubricating or separating agents in general C10M
• CPC Class Codes: C10M 101/025 waxes
• CPC Class Codes: C10M 105/66 containing hydroxy groups
• CPC Class Codes: C10M 107/38 containing halogen
• CPC Class Codes: C10M 107/50 containing silicon
• CPC Class Codes: C10M 109/00 Lubricating compositions characterised by the base-material being a compound of unknown or incompletely defined constitution C10M101/00 takes precedence
• CPC Class Codes: C10M 111/00 Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
• CPC Class Codes: C10M 2205/14 Synthetic waxes, e.g. polythene waxes
• CPC Class Codes: C10M 2205/143 used as base material
• CPC Class Codes: C10M 2205/16 Paraffin waxes; Petrolatum, e.g. slack wax
• CPC Class Codes: C10M 2205/163 used as base material
• CPC Class Codes: C10M 2205/17 Fisher Tropsch reaction products
• CPC Class Codes: C10M 2205/173 used as base material
• CPC Class Codes: C10M 2205/183 used as base material
• CPC Class Codes: C10M 2211/06 Perfluorinated compounds
• CPC Class Codes: C10M 2213/00 Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
• CPC Class Codes: C10M 2213/02 obtained from monomers containing carbon, hydrogen and halogen only
• CPC Class Codes: C10M 2213/023 used as base material
• CPC Class Codes: C10M 2213/04 obtained from monomers containing carbon, hydrogen, halogen and oxygen
• CPC Class Codes: C10M 2213/043 used as base material
• CPC Class Codes: C10M 2213/06 : Perfluoro polymers
• CPC Class Codes: C10M 2213/0606 : used as base material
• CPC Class Codes: C10M 2213/062 : Polytetrafluoroethylene [PTFE]
• CPC Class Codes: C10M 2213/0623 : used as base material
• CPC Class Codes: C10M 2215/10 : Amides of carbonic or haloformic acids
• CPC Class Codes: C10M 2229/02 : Unspecified siloxanes; Silicones
• CPC Class Codes: C10M 2229/025 : used as base material
• CPC Class Codes: C10M 2229/0405 : used as base material
• CPC Class Codes: C10M 2229/0415 : used as base material
• CPC Class Codes: C10M 2229/0425 : used as base material
• CPC Class Codes: C10M 2229/0435 : used as base material
• CPC Class Codes: C10M 2229/0445 : used as base material
• CPC Class Codes: C10M 2229/0455 : used as base material
• CPC Class Codes: C10M 2229/0465 : used as base material
• CPC Class Codes: C10M 2229/0475 : used as base material
• CPC Class Codes: C10M 2229/0485 : used as base material
• CPC Class Codes: C10M 2229/05 : containing atoms other than silicon, hydrogen, oxygen or carbon
• CPC Class Codes: C10M 2229/0505 : used as base material
• CPC Class Codes: C10M 2229/0515 : used as base material
• CPC Class Codes: C10M 2229/0525 : used as base material
• CPC Class Codes: C10M 2229/0535 : used as base material
• CPC Class Codes: C10M 2229/0545 : used as base material
• CPC Class Codes: C10N 2040/00 : Specified use or application for which the lubricating composition is intended
• CPC Class Codes: C10N 2040/30 : Refrigerators lubricants or compressors lubricants
• CPC Class Codes: C10N 2040/32 : Wires, ropes or cables lubricants
• CPC Class Codes: C10N 2040/34 : Lubricating-sealants
• CPC Class Codes: C10N 2040/36 : Release agents or mold release agents
• CPC Class Codes: C10N 2040/38 : Conveyors or chain belts
• CPC Class Codes: C10N 2040/40 : Generators or electric motors in oil or gas winning field
• CPC Class Codes: C10N 2040/42 : Flashing oils or marking oils
• CPC Class Codes: C10N 2040/44 : Super vacuum or supercritical use
• CPC Class Codes: C10N 2040/50 : Medical uses
• CPC Class Codes: C10N 2050/02 : dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating

Abstract

A process for imparting releasing property to a mold which comprises applying to the mold a composition comprising:

(A) (1) a fluorine-containing urethane compound represented by the formula ##STR1## and/or (2) a fluorine-containing urethane compound represented by the formula ##STR2## and/or (3) a fluorine-containing urethane compound represented by the formula ##STR3## and (B) at least one of members selected from the class consisting of silicone oil, silicone varnish, wax and a highly fluorinated organic compound and the mold release composition used for the process.

Claims

1. A process for imparting releasing property against one of synthetic resin, natural resin, rubber and formed product thereof to a mold which comprises applying to the mold a composition comprising:

(A) at least one of

(1) a fluorine-containing urethane compound represented by the formula ##STR55## wherein R_f represents a perfluoroalkyl group having 4 to 20 carbon atoms, X represents a methylene group, --CH₂ CH(A)C_m H_2m --or --SO₂ N(R)C_t H_2t --, A represents a hydrogen atom or hydroxyl group m is an integer of 0 to 4; and

R represents a methyl or ethyl group, t is an integer of 1 to 4, Y represents a divalent group selected from the group consisting of;

##STR56## and Z represents a monohydric organic group which is a residue obtained by removing one hydrogen atom from a compound of the group consisting of;

##STR57## ##STR58## C_n H_2n+ 1OH wherein n is an integer of 1 to 7, C_n H_2n+ 1O(CH₂)_n'"'"' OH wherein n is an integer of 1 to 4 and n'"'"' is an integer of 2 to 4, ##STR59## C_n H_n +₁ NH₂ wherein n is an integer of 1 to 3, ##STR60## and C_n H_2n+ 1 COOH wherein n is an integer of 1 to 3, (2) a fluorine-containing urethane compound represented by the formula ##STR61## wherein R_f, X and Y are as defined above and W represents a divalent organic group which is a residue obtained by removing two hydrogen atoms from a compound selected from the group consisting of;

HO(CH₂)_k OH wherein k is an integer of 2 to 6, HO(CH₂)_k NH₂ wherein k is an integer of 2 to 6, H₂ N(CH₂)kNH₂ wherein k in an integer of 2 to 6, ##STR62## wherein R¹ and R² are the same or different and are each a hydroxyl group or amino group and ##STR63## wherein R¹ and R² are as defined above, and (3) a fluorine-containing urethane compound represented by the formula ##STR64## wherein R_f, X and Y are as defined above, and (B) at least one of members selected from the class consisting of silicone oil, a methyl silicone varnish, wax, and a highly fluorinated organic alkyl compound or amine compound.

2. The process for imparting a releasing property to a mold of claim 1 further comprising:

introducing into the mold to which the releasing composition has been applied, one of the following molding materials;

synthetic resin, natural resin, and rubber;

molding the molding material into a molded product, and

releasing the molded product from the mold.

4. The process of claim 1 for imparting a releasing property to a mold wherein the composition comprises 0.1 to 10 parts by weight of (B) per part by weight of (A).

5. The process of claim 1 for imparting a releasing property to a mold wherein the composition comprises 0.3 to 5 parts by weight of (B) per part by weight of (A).

3. A mold release composition comprising:

(A) at least one of

(1) a fluorine-containing urethane compound represented by the formula ##STR65## wherein R_f represents a perfluoroalkyl group having 4 to 20 carbon atoms, X represents a methylene group, --CH₂ CH(A)C_m H_2m --or --SO₂ N(R)C_t H_2t --, A represents a hydrogen atom or hydroxyl group, m is an integer of 0 to 4; and

R represents a methyl or ethyl group, t is an integer of 1 to 4, Y represents a divalent group selected from the group consisting of;

##STR66## and --(CH)₆ --;

and Z represents a monohydric organic group which is a residue obtained by removing one hydrogen atom from a compound of the group consisting of;

##STR67## C_n H_2n+ 1OH wherein n is an integer of 1 to7, C_n H_2n+ 1O(CH₂)_n'"'"' OH wherein n in an integer of 1 to 4 and n∝

is an integer of 2 to 4, ##STR68## C_n H_n +₁ NH₂ wherien n is an integer of 1 to 3, ##STR69## and C_n H_2n+ 1 COOH wherein n in an integer of 1 to 3, (2) a fluorine-containing urethane compound represented by the formula ##STR70## wherein R_f, X and Y are as defined above and W represents a divalent organic group which is a residue obtained by removing two hydrogen atoms from a compound selected from the group consisting of HO(CH₂)_k OH wherein k is an integer of 2 to 6, HO(CH₂)_k NH₂ wherein k is an integer of 2 to 6, H₂ N(CH₂)_k NH₂ wherein k is an integer of 2 to 6, ##STR71## wherein R¹ and R² are the same or different and are each a hydroxyl group or amino group and ##STR72## wherein R¹ and R² are as defined above, and (3) a fluorine-containing urethane compound represented by the formula ##STR73## wherein R_f, X and Y are as defined above, and (B) at least one of members selected from the class consisting of silicon oil, methyl silicon varnish, wax, and a highly fluorinated organic alkyl compound or amine compound.

6. The mold release composition of claim 3 comprising 0.1 to 10 parts by weight of (B) per part by weight of (A).

7. The mold release composition of claim 3 comprising 0.3 to 5 parts by weight of (B) per part by weight of (A).