Multilayer sheet, methods of making and using the same, and articles comprising the same
A multi-layer sheet, coating technology, applied in the field of products including the same
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0044] Any of the methods of making polycarbonates described herein are not particularly limited. It can be produced by any known method for the production of polycarbonates, including interfacial methods using phosgene and / or using diaryl carbonates such as diphenyl carbonate or dimethyl salicyl carbonate as carbonates Fusion method of source.
[0045] "Polycarbonate" as used herein further includes homopolycarbonates, (wherein each R in the polymer 1 are the same), containing different R in the carbonate 1 Partial copolymers (referred to herein as "copolycarbonates"), comprising carbonate units and other types of polymer units such as ester units, and including those in homopolycarbonates and / or copolycarbonates A combination of at least one. As used herein, "composition" includes blends, mixtures, alloys, reaction products, and the like.
[0046] The polycarbonate composition may further comprise impact modifiers. Exemplary impact modifiers include natural rubber, fluo...
Embodiment 1
[0073] Example 1: A variety of multilayer sheets were fabricated to determine the coating composition that would result in the most desirable properties such that a multilayer sheet could be grown from greater than or equal to 50 centimeters (cm) by utilizing 13.8 gram (g) steel balls. ) distance and have a pencil hardness of at least 4H on the first surface of the substrate of the multilayer sheet. Table 1 lists some of the criteria used to test the multilayer sheets in the following examples. It should be understood that Taber wear as described herein is tested according to ASTM D1044-05 using a CS-IOF wheel with a 500 g load for 100 cycles.
[0074]
[0075] Table 2 lists the components of the various coating compositions used in this example. Coatings were formulated at 100% solids and then diluted to 60% solids using butyl acetate as diluent. The amount of monomer and oligomer was varied to determine the effect on pencil hardness, Taber wear and ball drop performance...
Embodiment 2
[0089] Example 2: Table 6 lists the components of the various coating compositions used in this example. Coatings were formulated at 100% solids and then diluted to 60% solids using butyl acetate as diluent. The amount of monomer and oligomer was varied to determine the effect on pencil hardness, Taber wear and ball drop performance. Pencil hardness and Taber abrasion were tested according to the standards listed in Table 1. The drop ball test was performed using a laboratory-made drop ball tester. In the test, a 13.8 g steel ball was dropped freely from a certain distance onto the multilayer sheet. Increase the distance to the threshold height until the coating (cap layer) or substrate layer (core layer) begins to crack. Below this threshold height, no cracks appear.
[0090] As seen in Table 6, Coating 4 contained 82 wt.% of KRM8452 commercially available from Cytec Industries, Inc. (which is an undiluted aliphatic polyurethane decaacrylate oligomer developed for energy ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More