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1. CN1259898 - Retroreflective cube corner sheeting, molds therefor and method of making same

Office
Chine
Numéro de la demande 97182329.4
Date de la demande 20.11.1997
Numéro de publication 1259898
Date de publication 12.07.2000
Numéro de délivrance 1086981
Date de délivrance 03.07.2002
Type de publication C
CIB
B29C 33/38
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
29TRAVAIL DES MATIÈRES PLASTIQUES; TRAVAIL DES SUBSTANCES À L'ÉTAT PLASTIQUE EN GÉNÉRAL
CFAÇONNAGE OU ASSEMBLAGE DES MATIÈRES PLASTIQUES; FAÇONNAGE DES MATIÈRES À L'ÉTAT PLASTIQUE NON PRÉVU AILLEURS; POST-TRAITEMENT DES PRODUITS FAÇONNÉS, p.ex. RÉPARATION
33Moules ou noyaux; Leurs détails ou accessoires
38caractérisés par la matière ou le procédé de fabrication
B29D 11/00
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
29TRAVAIL DES MATIÈRES PLASTIQUES; TRAVAIL DES SUBSTANCES À L'ÉTAT PLASTIQUE EN GÉNÉRAL
DFABRICATION D'OBJETS PARTICULIERS, À PARTIR DE MATIÈRES PLASTIQUES OU DE SUBSTANCES À L'ÉTAT PLASTIQUE
11Fabrication d'éléments optiques, p.ex. lentilles ou prismes
CPC
A45D 40/265
AHUMAN NECESSITIES
45HAND OR TRAVELLING ARTICLES
DHAIRDRESSING OR SHAVING EQUIPMENT
40Casings or accessories for storing or handling solid or pasty toilet or cosmetic substances, e.g. shaving soap, lipstick, make-up
26Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
262using a brush or the like
265connected to the cap of the container
A61K 8/25
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
19containing inorganic ingredients
25Silicon; Compounds thereof
A61K 8/31
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
30containing organic compounds
31Hydrocarbons
A61K 8/37
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
30containing organic compounds
33containing oxygen
37Esters of carboxylic acids
A61K 8/731
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
73Polysaccharides
731Cellulose; Quaternized cellulose derivatives
A61K 8/732
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
73Polysaccharides
732Starch; Amylose; Amylopectin; Derivatives thereof
Déposants Minnesota Mining and Mfg. Co.
美国3M公司
Inventeurs Kenneth L. Smith
肯纳·L·史密斯
Gerald M. Benson
杰拉尔德·M·本森
Mandataires wen qing
上海专利商标事务所
Données relatives à la priorité 08/887,390 02.07.1997 US
Titre
(EN) Retroreflective cube corner sheeting, molds therefor and method of making same
(ZH) 反光立体角片材所用模具及该模具的制造方法
Abrégé
(EN) A method is disclosed for manufacturing a plurality of laminae for use in a mold suitable for use in forming retroreflective cube corner articles. Each lamina has opposing first and second major surfaces defining therebetween a first reference plane. Each lamina further includes a working surface connecting the first and second major surfaces. The working surface defines a second reference plane substantially parallel to the working surface and perpendicular to the first reference plane and a third reference plane perpendicular to the first reference plane. The method includes (a) orienting a plurality of laminae to have their respective first reference planes parallel to each other and disposed at a first angle relative to a fixed reference axis, (b) forming a plurality of cube corner elements on the working surfaces of the plurality of the laminae, wherein the plurality of cube corner elements have three approximately mutually perpendicular lateral faces that mutually intersect to define a cube corner element peak, and (c) removing a plurality of laminae from the assembly to alter the configuration of the mold surface.
(ZH)

一种用来制造多个使用在模具中的薄片(10a、b、c、d、e、f、g、h)的方法,所述模具适用于形成反光立体角制品。每一薄片具有对置的第一和第二主表面,所述两表面之间形成一第一参考平面。每一薄片还包括一将第一和第二主表面连接起来的工作面。所述工作面形成一基本平行于所述工作面并垂直于所述第一参考平面的第二参考平面以及一垂直于所述第一参考平面的第三参考平面。所述方法包括以下步骤:(a)对一组件内的多个薄片进行取向,以使它们各自的第一参考平面彼此相互平行,并设置得与一固定参考轴线呈一第一角度;(b)在所述多个薄片的工作面上形成多个立体角单元,其中,所述多个立体角单元具有三个大体相互垂直的侧面,这些侧面彼此相交而形成一立体角单元顶峰;以及(c)从所述组件中除去多个薄片(10c,f),以改变所述模具表面的构造。