- Email: [email protected]
or stripping composition
CONI'OIIIIAIIU NICOL COAnNe
U.S. Patent 5,916,696. June 29, 1999 J .A. Abys et al., assignors to Lucent Technologies Inc., Murray Hill, N.J.
A lead frame comprising a substrate made of a material selected from the group consisting of copper, copper alloys, and nickel alloys with a conformable nickel coating thereon with a thickness of at least 0.5""m wherein cracks through the thickness of the nickel layer do not form when the lead frame is bent to an angle of at least about 82° with a forming radius of 150 to 300 ""m when the depth of the surface deformations that appear in the metal substrate as a result of the bending do not exceed 5 ""m and wherein the conformable nickel
coating is formed by placing the substrate in a nickel bath comprising 75 to 130 gIL of nickel as a nickel complex, 3 gIL of a nickel salt, 30 to 45 gIL of a buffer, and 5 to 20 mllL of a perfiuorinated quaternary amine wetting agent, and maintaining the pH of the bath in the range of2 to 2.5 while applying a current density of 5 to 50 Ndm 2 . CUANINCI AND/OII STRIPPING
esters of at least one CC C6 aliphatic dibasic acid; and 99 to 1% of one or more ethers. PAINT STRIPPING COMPOamON
U.S. Patent 5,916,861. June 29, 1999 W.J . Lyssy, San Antonio, Texas
A composition for stripping surface finishes comprising 15 to 50% by weight ethyl 3 ethoxypropionate; 10 to 35% methanol; 10 to 35% toluene; and 10 to 35% acetone.
COMPOSITION
U.S. Patent 5,916,860. June 29, 1999 J-L. Joye and M-M. Vincent, assignors to Rhone-Poulenc Chimie, Courbevoie, France
WATIII.." . . . COAnNe
A stripping or cleaning composition comprising by volume 1 to 90% of one or more C}-C 4 dialkyl
The Sherwin· Williams Co., Cleveland
COMPOSITION
U.S. Patent 5,916,960. June 29, 1999 D. Lum and P. Patel, assignors to
A water-based, self-curing storage-
pal
• Powerful tatisti . • Selectable upper and lower c(mtrollimits. • Automatic substrate recognitiun. (Dualscope MPOD) • Ideal for painl, powder c alings. 3nodiling.
Call u lodayal 1·800·243·8417 www.tischer-tchnology.com
Fischer Technology, Inc .. 750 Marshall Phelps Road, Windsor, CT 06095 Phone: 860·683-0781 Fax: 860·688-8496 W. acc.pl malor cred,! cards
Circle 078 on reader information card
82
Circle 027 on reader information card
Metal Finishing
U.S. Patent 5,916,696. June 29, 1999 J .A. Abys et al., assignors to Lucent Technologies Inc., Murray Hill, N.J.
A lead frame comprising a substrate made of a material selected from the group consisting of copper, copper alloys, and nickel alloys with a conformable nickel coating thereon with a thickness of at least 0.5""m wherein cracks through the thickness of the nickel layer do not form when the lead frame is bent to an angle of at least about 82° with a forming radius of 150 to 300 ""m when the depth of the surface deformations that appear in the metal substrate as a result of the bending do not exceed 5 ""m and wherein the conformable nickel
coating is formed by placing the substrate in a nickel bath comprising 75 to 130 gIL of nickel as a nickel complex, 3 gIL of a nickel salt, 30 to 45 gIL of a buffer, and 5 to 20 mllL of a perfiuorinated quaternary amine wetting agent, and maintaining the pH of the bath in the range of2 to 2.5 while applying a current density of 5 to 50 Ndm 2 . CUANINCI AND/OII STRIPPING
esters of at least one CC C6 aliphatic dibasic acid; and 99 to 1% of one or more ethers. PAINT STRIPPING COMPOamON
U.S. Patent 5,916,861. June 29, 1999 W.J . Lyssy, San Antonio, Texas
A composition for stripping surface finishes comprising 15 to 50% by weight ethyl 3 ethoxypropionate; 10 to 35% methanol; 10 to 35% toluene; and 10 to 35% acetone.
COMPOSITION
U.S. Patent 5,916,860. June 29, 1999 J-L. Joye and M-M. Vincent, assignors to Rhone-Poulenc Chimie, Courbevoie, France
WATIII.." . . . COAnNe
A stripping or cleaning composition comprising by volume 1 to 90% of one or more C}-C 4 dialkyl
The Sherwin· Williams Co., Cleveland
COMPOSITION
U.S. Patent 5,916,960. June 29, 1999 D. Lum and P. Patel, assignors to
A water-based, self-curing storage-
pal
• Powerful tatisti . • Selectable upper and lower c(mtrollimits. • Automatic substrate recognitiun. (Dualscope MPOD) • Ideal for painl, powder c alings. 3nodiling.
Call u lodayal 1·800·243·8417 www.tischer-tchnology.com
Fischer Technology, Inc .. 750 Marshall Phelps Road, Windsor, CT 06095 Phone: 860·683-0781 Fax: 860·688-8496 W. acc.pl malor cred,! cards
Circle 078 on reader information card
82
Circle 027 on reader information card
Metal Finishing