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Class Information
Number: 528/234
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > From aldehyde or derivative thereof as reactant > Polymerizing in the presence of a specified material other than a reactant > Material contains a metal atom > Material contains a transition metal atom
Description: Subject matter wherein the specified material contains at least one transition metal atom.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7371808 |
Polymer treating method and apparatus |
May. 13, 2008 |
| 6506850 |
Polyoxymethylene copolymer and composition thereof |
Jan. 14, 2003 |
| 6020452 |
Chiral biphenyl compounds for use in asymmetric reactions |
Feb. 1, 2000 |
| 5929195 |
Process for producing branched or crosslinked polyacetal resin |
Jul. 27, 1999 |
| 5889134 |
Chiral organozinc species for use in asymmetric reactions |
Mar. 30, 1999 |
| 5866670 |
Process for preparing polyacetal copolymer |
Feb. 2, 1999 |
| 5844059 |
Process for preparing polyacetal copolymer |
Dec. 1, 1998 |
| 5770678 |
Polymerization of, and depolymerization to, cyclic ethers using selected metal compound catalysts |
Jun. 23, 1998 |
| 5763560 |
Method of producing styrene derivatives |
Jun. 9, 1998 |
| 5728798 |
Process for preparing polyacetal copolymer |
Mar. 17, 1998 |
| 5726276 |
Process for preparing polyacetal copolymer |
Mar. 10, 1998 |
| 5646235 |
Reductive alkylation of polyamines |
Jul. 8, 1997 |
| 5641853 |
Polymerization of cyclic ethers using selected metal compound catalysts |
Jun. 24, 1997 |
| 5608030 |
Process for the preparation of polyacetals |
Mar. 4, 1997 |
| 5124417 |
Initiators for cationic polymerization |
Jun. 23, 1992 |
| 5115083 |
Curable aminoplast compositions and catalysts for curing same |
May. 19, 1992 |
| 5025085 |
Curable aminoplast compositions and catalysts for curing same |
Jun. 18, 1991 |
| 4956445 |
Process for the preparation of acetal polymer or copolymer |
Sep. 11, 1990 |
| 4931535 |
Process for the preparation of acetal polymer or copolymer |
Jun. 5, 1990 |
| 4904516 |
Phenol-formaldehyde resin solution containing water soluble alkaline earth metal salt |
Feb. 27, 1990 |
| 4405771 |
Organometallic polymers, their preparation and compositions containing them |
Sep. 20, 1983 |
| 4398034 |
Process for the preparation of low molecular weight polyesters from hydroxypivaldehyde |
Aug. 9, 1983 |
| 4173551 |
Heat curable compositions |
Nov. 6, 1979 |
| 4133801 |
Process for the preparation of polyesters |
Jan. 9, 1979 |
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