Lanchi P Vo

US Patent:

51791889, Jan 12, 1993

Filed:

Apr 22, 1991

Appl. No.:

7/689212

Inventors:

Frank W. Mercer - Belmont CA
Timothy D. Goodman - Redwood City CA
Aldrich N. K. Lau - Palo Alto CA
Lanchi P. Vo - San Jose CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

C08G 6540
C08G 6548

US Classification:

528219

Abstract:

Fluorinated polyether compositions having reactive end gorups, such as ##STR1## can be crosslinked to produce cured films useful as dielectrics for microelectronic applications. Other reactive end groups such as allyl, benzocyclobutyl, N-phenylmaleimido, alkynylphenyyl, styryl, allylphenyl, cyanophenyl, and triazenophenyl are also suitable.

US Patent:

51735423, Dec 22, 1992

Filed:

Sep 17, 1990

Appl. No.:

7/583898

Inventors:

Aldrich N. K. Lau - Palo Alto CA
Lanchi P. Vo - San Jose CA
Frank W. Mercer - Belmont CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

C08F 830

US Classification:

525351

Abstract:

Bistriazene compounds such as ##STR1## are useful for crosslinking polymers such as poly(imides), poly(aryl ether ketones), poly(aryl ether sulfones), poly(quinolines), poly(quinoxalines), and nonaromatic fluoropolymers having aliphatic C--H groups. Polymers crosslinked with these bistriazene compounds are useful as interlayer insulators in multilayer integrated circuit articles.

US Patent:

52506673, Oct 5, 1993

Filed:

Sep 9, 1992

Appl. No.:

7/943093

Inventors:

Aldrich N. K. Lau - Palo Alto CA
Lanchi P. Vo - San Jose CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

C07C24524
C08L 7112

US Classification:

534554

Abstract:

Compounds of the structure ##STR1## where --R' is --F, --CF. sub. 3, --CN, or --Cl; each --R", which may be the same or different, is independently selected from the group consisting of C. sub. 1 -C. sub. 6 alkyl or hydroxyalkyl moieties and aryl moieties; and n is 0 or 1. Such compounds are useful as derivatizing and crosslinking agents for polymers, especially fluorinated poly(arylene ethers).

US Patent:

52704530, Dec 14, 1993

Filed:

Nov 17, 1992

Appl. No.:

7/977472

Inventors:

Aldrich N. K. Lau - Palo Alto CA
Lanchi P. Vo - San Jose CA
Frank W. Mercer - Belmont CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

C07C24524

US Classification:

534550

Abstract:

Aromatic bistriazene compounds of the formula ##STR1## wherein --R. sub. 1, --R. sub. 2, --R. sub. 3, and --R. sub. 4 are independently --H, --C. sub. 6 H. sub. 5, --C. sub. 6 H. sub. 4 Y, or C. sub. 1 -C. sub. 4 alkyl; --R. sub. 5 -- is ##STR2## --R. sub. 6 is --F, --Cl, --Br, --CH. sub. 3, or --CF. sub. 3 ; r is 0, 1, 2, 3, or 4; and --Y is halogen, --NO. sub. 2, --C. sub. 6 H. sub. 5, or C. sub. 1 -C. sub. 4 alkyl. These bistriazene compounds are useful for cross-linking polymers such as poly(imides), poly(aryl ether ketones), poly(aryl ether sulfones), poly(quinolines), poly(quinoxalines), and nonaromatic fluoropolymers having aliphatic C--H groups.

US Patent:

58303855, Nov 3, 1998

Filed:

Jan 24, 1997

Appl. No.:

8/773803

Inventors:

Aldrich N. K. Lau - Palo Alto CA
Lanchi P. Vo - San Jose CA
Robert H. Reamey - Palo Alto CA
John R. Havens - Menlo Park CA
Kathleen Di Zio - Palo Alto CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

C09K 1952
C09K 1900
G02F 113

US Classification:

25229901

Abstract:

A liquid crystal light composite in which discrete volumes of a liquid crystal material are dispersed in a matrix material is produced by a process in which a reactive additive formulation is added and photopolymerized. The reactive additive formulation includes mono- and multifunctional compounds in specified proportions and a photoinitiator. The reactive additive formulation reduces the operating field and may also improve other electro-optical properties.

US Patent:

52350444, Aug 10, 1993

Filed:

Sep 9, 1992

Appl. No.:

7/943370

Inventors:

Frank W. Mercer - Belmont CA
Aldrich N. K. Lau - Palo Alto CA
Lanchi P. Vo - San Jose CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

C07D271107
C08L 7112

US Classification:

534551

Abstract:

A composition having the structure ##STR1## wherein --R' is --F or --Cl, each --R", which may be the same or different, is independently selected from the group consisting of C. sub. 1 -C. sub. 6 alkyl or hydroxyalkyl moieties and aryl moieties, and n is 1 or 2. These compositions are useful as co-monomers or end-cappers for the introduction of thermally reactive cross-linking sites into polymers.

US Patent:

51147807, May 19, 1992

Filed:

Sep 17, 1990

Appl. No.:

7/583900

Inventors:

Frank W. Mercer - Belmont CA
Timothy D. Goodman - Redwood City CA
Aldrich N. K. Lau - Palo Alto CA
Lanchi P. Vo - San Jose CA
Richard C. Sovish - Los Altos CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

B32B 900

US Classification:

428195

Abstract:

An electronic article such as a multichip module or an integrated circuit chip has a multilayer interconnect with multiple layers of conductive material and a dielectric material made of a fluorinated poly(arylene ether) having a repeat unit such as ##STR1##.

US Patent:

51551756, Oct 13, 1992

Filed:

Sep 17, 1990

Appl. No.:

7/583897

Inventors:

Frank W. Mercer - Belmont CA
Timothy D. Goodman - Redwood City CA
Aldrich N. K. Lau - Palo Alto CA
Lanchi P. Vo - San Jose CA

Assignee:

Intellectual Property Law Dept. - Menlo Park CA

International Classification:

C08G 6548

US Classification:

525390

Abstract:

A crosslinkable composition comprising: (i) a fluorinated poly(arylene ether) comprising a repeat unit of such as ##STR1## and (ii) a bistriazene compound such as ##STR2## bistriazene compound (ii) being present in an amount effective to crosslink fluorinated poly(arylene ether) (i).