公开(公告)号：US3567686A

公开(公告)日：1971-03-02

申请号：US3567686D

申请日：1969-08-27

Applicant: GEN MOTORS CORP

Inventor： WHITE RONALD E ,  GARDLUND ZACHARIAH G

IPC: C08G18/44 ,  C08G64/14 ,  C08G64/42 ,  C08L67/00 ,  C08G17/13

CPC classification number: C08G64/42 ,  C08G18/44 ,  C08G64/14 ,  C08L67/00 ,  C08L2666/14

Abstract: LINEAR POLYCARBONATE RESINS CONTAINING MANY PENDANT ESTER GROUPS AND POSSESSING THE GENERAL STRUCTURAL FORMULA

HO-(1,4-PHENYLENE)-C(-A)(-(CH2)N-COO-R)-(1,4-PHENYLENE)-

O-CO-O)N-(1,4-PHENYLENE)-C(-A)(-(CH2)N-COO-R)-

(1,4-PHENYLENE)-OH

WHEREIN:

A IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF -H, -CH3, AND -C6H5; R IS AN ALKYL GROUP CONTAINING ONE TO EIGHTEEN CARBON ATOMS AND N IS AN INTEGER IN THE RANGE OF 40 TO 70 INCLUSIVE,

ARE CONVERTED TO THE CORRESPONDING LINEAR POLYCARBONATE RESINS CONTAINING A LARGE NUMBER OF PENDANT HYDROXYL GROUPS ONLY BY REDUCTION OF THE ESTER GROUP WITH DIBORANE (B2H4). THE HYDROXYL GROUPS THUS PRODUCED IN THE POLYCARBONATE MOLECULAR CHAIN ARE USEFUL AS GRAFTING AND CROSS-LINKING SITES FOR FURTHER REACTION WITH ORGANIC AND ORGANIC-INORGANIC MOIETIES TO PROVIDE MODIFIED POLYCARBONATES WITH ENHANCED PHYSICAL PROPERTIES.

公开(公告)号：US3652379A

公开(公告)日：1972-03-28

申请号：US3652379D

申请日：1969-11-07

Applicant: GEN MOTORS CORP

Inventor： WHITE RONALD E ,  GARDLUND ZACHARIAH G

IPC: B32B27/00 ,  B32B17/10 ,  C03C27/12

CPC classification number: B32B27/08 ,  B32B17/10018 ,  B32B17/10761 ,  B32B27/00 ,  B32B27/30 ,  B32B27/365 ,  B32B2307/412 ,  B32B2307/554 ,  B32B2307/584 ,  B32B2369/00 ,  B32B2605/08 ,  Y10T428/31507 ,  Y10T428/31942

Abstract: A transparent polycarbonate resin article, such as an automobile windshield, is prepared having a three-layer, scratch resistant film (about 1 mil in thickness) on a surface thereof. The film contains three layers as formed; an inner layer of a suitable hydroxylated polycarbonate resin, an intermediate layer of silica and poly(vinyl butyral), and an outer layer of silica and poly(vinyl alcohol). The three layers are formed sequentially by wetting a surface of the polycarbonate body with a solution of the specific material in the first layer, evaporating the solvent to form a thin residual solid coating, and repeating this process with respect to the materials specified for the other two layers until the three-layer film is completed.

Abstract translation: 制备透明聚碳酸酯树脂制品，例如汽车挡风玻璃，其表面上具有三层耐划伤膜（厚度约1密耳）。 该胶片包含三层形成; 合适的羟基化聚碳酸酯树脂的内层，二氧化硅的中间层和聚（乙烯醇缩丁醛），以及二氧化硅和聚（乙烯醇）的外层。 通过用第一层中的特定材料的溶液润湿聚碳酸酯体的表面，蒸发溶剂以形成薄的残留固体涂层，并相对于另一个指定的材料重复该过程，顺序地形成三个层 两层，直到三层膜完成。

公开(公告)号：US3652328A

公开(公告)日：1972-03-28

申请号：US3652328D

申请日：1969-09-02

Applicant: GEN MOTORS CORP

Inventor： DORK RONALD A ,  WHITE RONALD E

IPC: B44F1/06 ,  G02B1/10 ,  B32B27/06 ,  B44D5/00

CPC classification number: B44F1/06 ,  G02B1/105 ,  G02B1/14 ,  Y10T428/264 ,  Y10T428/269 ,  Y10T428/31645

Abstract: A composite optical element is disclosed having a synthetic resin substrate and an abrasion resistant surface coating of barium titanate. A polycarbonate resin substrate and an R.F. vacuum sputtered barium titanate protective surface coating provides a particularly tough and abrasion resistant optical element such as a window or windshield.

Abstract translation: 公开了具有合成树脂基材和钛酸钡的耐磨表面涂层的复合光学元件。 聚碳酸酯树脂基材和R.F. 真空溅射的钛酸钡保护表面涂层提供了特别坚硬和耐磨的光学元件，例如窗户或挡风玻璃。