Inventor
INGRAM ALVIN R
US15 patents
⚠️ This page may combine multiple inventors who share the name “INGRAM ALVIN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ATLANTIC RICHFIELD CO
12 patentsUS4385156AMay 24, 1983
Process for producing coated styrenic polymer beads for heat resistant foams
ATLANTIC RICHFIELD CO20 citations79
US4692472ASep 8, 1987
Divinylbenzene in expandable beads for cup molding
ATLANTIC RICHFIELD CO9 citations73
US4547527AOct 15, 1985
Impregnation suspension system for expandable styrene/maleic anhydride particles
ATLANTIC RICHFIELD CO9 citations73
US4333969AJun 8, 1982
Process for producing styrenic polymer beads of preferred bead size
ATLANTIC RICHFIELD CO18 citations73
US4307134ADec 22, 1981
Process for producing plasticized elastomer-styrene coated beads
ATLANTIC RICHFIELD CO19 citations72
US4333970AJun 8, 1982
Process for producing coated beads with macromonomer-styrene polymerizate coating
ATLANTIC RICHFIELD CO13 citations71
US4681779AJul 21, 1987
Anti-static styrene polymer particles by impregnation
ATLANTIC RICHFIELD CO3 citations62
US4609681ASep 2, 1986
Anti-lumping styrene polymer particles for molding foams
ATLANTIC RICHFIELD CO6 citations62
US4608394AAug 26, 1986
Anti-static styrene polymer particles by impregnation
ATLANTIC RICHFIELD CO4 citations62
US4588751AMay 13, 1986
Anti-lumping styrene polymer particles for molding foams
ATLANTIC RICHFIELD CO3 citations62
US4386133AMay 31, 1983
Coated beads with macromonomer-styrene polymerizate coating
ATLANTIC RICHFIELD CO5 citations60
US4708968ANov 24, 1987
Divinylbenzene in expandable beads for cup molding
ATLANTIC RICHFIELD CO3 citations57
ARCO POLYMERS INC
3 patentsUS4029869AJun 14, 1977
Method of making broader molecular weight distribution polystyrene
ARCO POLYMERS INC24 citations82
US4035315AJul 12, 1977
Fire-resistant styrene polymer foams
ARCO POLYMERS INC23 citations81
US4269871AMay 26, 1981
Antilumping expandable styrene polymers
ARCO POLYMERS INC12 citations71