| Patent Number |
Title Of Patent |
Date Issued |
| 4956408 |
Complex acrylates as stabilizer for conjugated diene/monovinyl aromatic copolymers |
September 11, 1990 |
| A conjugated diene/monovinyl substituted aromatic hydrocarbon copolymer is stabilized by the addition of a complex acrylate, in combination with at least one of an alkyl thiopropionate, an organic phosphite and a non-acrylate substituted hindered phenolic compound. |
| 4704435 |
Craze-resistant polymodal linear block copolymers with resinous terminal blocks |
November 3, 1987 |
| Sequential charging of initiator and monomers in a multistage solution polymerization process involving conjugated diene and monovinylaromatic monomers wherein the initial and final charges are monovinylaromatic monomer results in the production of polymodal linear block copolymers w |
| 4704434 |
Craze-resistant polymodal linear block copolymers with terminal tapered blocks |
November 3, 1987 |
| Sequential charging of initiator and monomers in a multistage solution polymerization process involving conjugated diene and monovinylaromatic monomers wherein the final charge is a mixture of these monomers results in the production of resinous polymodal linear block copolymers each wit |
| 4584346 |
Craze-resistant transparent resinous polymodal block copolymers |
April 22, 1986 |
| Resinous polymodal block copolymers of such as butadiene and styrene which are craze-resistant, transparent, and substantially color-free, and methods of producing the block copolymers. The copolymers are prepared by sequential charge copolymerization modes comprising the solution po |
| 4267284 |
Tough, transparent articles from styrene polymers blended with certain block-random copolymers |
May 12, 1981 |
| A blend comprising (1) 20 to 70 weight percent of a styrene polymer, and (2) 30 to 80 weight percent of a resinous copolymer having a polymerized monovinyl-substituted aromatic compound block and a polymerized monovinyl-substituted aromatic compound/conjugated diene random copolymer |
| 4238369 |
Chromium-silica catalysts by hydrothermal treating |
December 9, 1980 |
| A catalyst composition of a chromium compound supported on a silica-containing substrate is prepared by contacting the silica-containing substrate with a gaseous carrier containing water vapor at a temperature in the range above about 1100.degree. F. to about 2000.degree. F. for a ti |
| 4120915 |
Styrene-diene.sub.1 -diene.sub.2 block terpolymer with improved thermal stability |
October 17, 1978 |
| A thermally stable resinous block terpolymer is formed by first polymerizing styrene to form a resinous block segment, thereafter forming a block segment of sequentially polymerized isoprene and 1,3-butadiene, and finally coupling the resulting polymer chains with a polyfunctional co |
| 4091053 |
Coupled resinous diene copolymer with good integral hinge flex life and high hardness |
May 23, 1978 |
| A conjugated diene/monovinyl-substituted aromatic compound resinous copolymer such as a styrene/butadiene block copolymer is produced using two additions of the monovinyl-substituted aromatic component and initiator in a manner such that the product has 71 to 81 wt. percent monovinyl |
| 3987006 |
Carbon dioxide and excess water treatment of polymer stabilized with phosphite and glycine |
October 19, 1976 |
| The effluent from a lithium initiated polmerization, wherein a coupling agent is utilized to join two or more polymer molecules together, with the resulting generation of LiO--, LiS--, or ##EQU1## groups is treated with carbon dioxide and an excess of water and thereafter stabili |
