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公开(公告)号:CS257265B2
公开(公告)日:1988-04-15
申请号:CS962084
申请日:1984-12-11
Applicant: MONSANTO CO
Inventor: GABBERT JAMES D , HEDRICK ROSS M
IPC: C08G69/18
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公开(公告)号:CS8409620A2
公开(公告)日:1987-09-17
申请号:CS962084
申请日:1984-12-11
Applicant: MONSANTO CO
Inventor: GABBERT JAMES D , HEDRICK ROSS M
IPC: C08G69/18
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公开(公告)号:DD240212A5
公开(公告)日:1986-10-22
申请号:DD28439085
申请日:1985-12-16
Applicant: MONSANTO CO
Inventor: GABBERT JAMES D , HEDRICK ROSS M
Abstract: A process for polymerizing ε-caprolactam to form a nylon-6 block copolymer in which a reactant stream containing. ε-caprolactam, and a lactam polymerization initiator is brought into polymerizing admixture with a reactant stream containing 41-caprolactam and a lactam magnesium halide, wherein sufficient 2-oxo-1-pyrrolidinyl compound is added to the admixture either as 2-pyrrolidinone, 2-oxo-pyrrolidinyl magnesium halide or 2-oxo-1-pyrrolidinyl capped initiator compound to enhance the rate of polymerization of the ε-caprolactam. The lactam polymerization initiator is a telechelic oligomer or polymer containing a backbone which provides elastomeric segments in the nylon-6 block copolymer, and attached to the backbone are activated initiator groups which initiate the polymerization of ε-caprolactam in the presence of the lactam magnesium halide.
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公开(公告)号:DD240211A5
公开(公告)日:1986-10-22
申请号:DD28438985
申请日:1985-12-16
Applicant: MONSANTO CO
Inventor: GABBERT JAMES D , HEDRICK ROSS M
Abstract: A process for polymerizing ε-caprolactam to form a nylon-6 polymer in which a reactant stream containing e-caprolactam and a lactam polymerization initiator is brought into polymerizing admixture with a reactant stream containing ε-caprolactam and a lactam magnesium halide, wherein sufficient 2-oxo-1-pyrrolidinyl compound is added to the admixture either as 2-pyrrolidinone, 2-oxo-pyrrolldinyl magnesium halide or 2-oxo-1-pyrrolidinyl capped initiator compound to enhance the rate of polymerization of the ε-caprolactam.
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公开(公告)号:CA1186831A
公开(公告)日:1985-05-07
申请号:CA405172
申请日:1982-06-15
Applicant: MONSANTO CO
Inventor: GABBERT JAMES D , GARNER ALBERT Y , HEDRICK ROSS M
Abstract: PROCESS FOR THE PREPARRATION OF NYLON BLOCK POLYMERS A process for preparing a nylon block copolymer which comprises bringing into reactive contact lactam monomer, basic lactam polymerization catalyst and an acyllactam functional material selected from the group consisting of those of the formulae: wherein, Q is with Y = C3-C11 alkylene; a is an integer equal to 1, 2 or 3; b is an integer equal to 2 or more; R is a di- or poly- valent group selected from hydrocarbon groups and hydrocarbon groups containing ether linkages; and Z is a segment of (1) a polyether having a minimum molecular weight of 2,000; or (2) a polyester containing polyether segments having a minimum molecular weight of about 2,000. Also covered are materials wherein Z is a segment of either a hydrocarbon or polysiloxane.
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公开(公告)号:DD202729A5
公开(公告)日:1983-09-28
申请号:DD24074582
申请日:1982-06-15
Applicant: MONSANTO CO
Inventor: GABBERT JAMES D , GARNER ALBERT Y , HEDRICK ROSS M
IPC: C08L77/00
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公开(公告)号:CA1141641A
公开(公告)日:1983-02-22
申请号:CA342605
申请日:1979-12-21
Applicant: MONSANTO CO
Inventor: HEDRICK ROSS M , WOODBREY JAMES C , GABBERT JAMES D , ERICKSON FLOYD B
IPC: B32B15/08
Abstract: This invention provides metal-thermoplastic-metal laminates and a process for preparing same which possess critical service properties of low coefficient of linear thermal expansion, low inelastic ratio, and excellent flexural stiffness. The laminate is comprised of a thermoplastic core layer having a minimum thickness of 0.0483 cm; and a metal layer laminated on each side of the core, each metal layer having a minimum thickness of 0.00127 cm. When the core is high density polyethylene, aluminum is not the metal layer on both sides; and when the core is polypropylene, aluminum is the metal layer on each side. The laminate has a maximum weight of about 5.37 kg/m2 and the thickness ratio of the sum of the metal layer thicknesses to the core layer thickness is described by the region of numerical overlap of the parameter TR(YSm/TSc) wherein TR is the thickness ratio of the sum of the metal layer thicknesses to the core layer thickness; YSm is the thickness-weight-average tensile yield strength of the two metal layers at an offset of 5% elongation; and TSc is the tensile strength of the core layer; as determined from the areas defined by the relationships of TR(YSm/TSc) to the inelastic ratio of the laminate as measured in flexure at 5% strain in the outer metal layers at the point of maximum deflection (IR?); and the coefficient of linear thermal expansion of the laminate (CLTE?); the lower boundary of these areas being defined by the equation of a straight line y = mx + b in which y is the y-axis parameters of IR? and CLTE? , x is the x-axis parameter of TR(YSm/TSc), m is the slope of the straight line and b is the intercept on the y-axis. The laminates are useful in construction applications such as outer and inner building panels, appliance panels, and transportation vehicle body panels, for example, automobiles, boats and airplanes.
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公开(公告)号:CA842323A
公开(公告)日:1970-05-19
申请号:CA842323D
Applicant: MONSANTO CO
Inventor: HEDRICK ROSS M , HOLLADAY HARRY P
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公开(公告)号:CA841680A
公开(公告)日:1970-05-12
申请号:CA841680D
Applicant: MONSANTO CO
Inventor: MCMANIMIE ROBERT J , HEDRICK ROSS M
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公开(公告)号:CA827208A
公开(公告)日:1969-11-11
申请号:CA827208D
Applicant: MONSANTO CO
Inventor: HEDRICK ROSS M , TIERNEY PAUL A
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