# US 2014/0193595 A1 · Method of manufacturing glass fiber product and portable electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0193595 A1 - Document ID: US20140193595A1 - Status: Published application - Kind: A1 - Application number: 13/786,089 - Filed: 2013-03-05 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Assignees: Getac Technology Corporation - Applicants: Getac Technology Corporation - Inventors: Juei-Chi Chang; James Hwang - Web page: https://patentgrep.com/patent/US20140193595A1 ## CPC - B29C 45/0055: {Shaping} - B29C 45/0005: {using fibre reinforcements} - B29C 45/1676: {using a soft material and a rigid material, e.g. making articles with a sealing part} - B29C 69/001: {a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts (for reinforced material B29C70/545; B29C49/4278, B29C51/268 take precedence)} - B29C 45/0001: {characterised by the choice of material} - B29C 45/14336: {Coating a portion of the article, e.g. the edge of the article (B29C45/14573 and B29C45/14598 take precedence)} - B29C 45/73: of the mould {(B29C45/2642 and B29C45/2737 take precedence)} - B29C 2045/7356: {the temperature of the mould being near or higher than the melting temperature or glass transition temperature of the moulding material} - B29C 2793/00: Shaping techniques involving a cutting or machining operation - B29K 2101/12: Thermoplastic materials - B29K 2105/12: of short lengths, e.g. chopped filaments, staple fibres or bristles - B29K 2509/08: Glass - B29K 2995/007: Hardness - B29L 2031/3481: {Housings or casings incorporating or embedding electric or electronic elements} - Y10T 428/1314: Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.] - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A manufacturing method of a glass fiber product is disclosed. A glass fiber resin is provided. The glass fiber resin includes a thermoplastic resin, a glass fiber, and an additive. The amount of the thermoplastic resin is between 30 wt % and 70 wt %, the content of the glass fiber is between 40 wt % and 70 wt % and the amount of the additive is between 0.1 wt % and 15 wt %. A molding process is performed for the glass fiber resin to mold the glass fiber resin into a semi-finished product. A mechanical machining process is performed on the semi-finished product to form at least one recessed structure in the semi-finished product, so as to form a final product. ## Claims ### Claim 1 A manufacturing method of a glass fiber product, comprising: providing a glass fiber resin, wherein the glass fiber resin comprises: a thermoplastic resin, having an amount between 30 wt % and 70 wt %; a glass fiber, having an amount between 40 wt % and 70 wt %; and an additive, having an amount between 0.1 wt % and 15 wt %; performing a molding process for the glass fiber resin to mold the glass fiber resin into a semi-finished product; and performing a mechanical machining process on the semi-finished product to form at least one recessed structure in the semi-finished product, so as to form a final product. ### Claim 2 (depends on 1) The manufacturing method according to claim 1 further comprising forming a thermoplastic elastomer at at least one stress concentration position on the semi-finished product or the final product. ### Claim 3 (depends on 2) The manufacturing method according to claim 2, wherein the thermoplastic elastomer is selected from a group consisting of polyamide (PA) thermoplastic elastomer, polyester thermoplastic elastomer, polyolefin thermoplastic elastomer, and styrene thermoplastic elastomer. ### Claim 4 (depends on 2) The manufacturing method according to claim 2, wherein a Shore hardness of the thermoplastic elastomer is between 40 Shore D and 80 Shore D. ### Claim 5 (depends on 2) The manufacturing method according to claim 2, wherein a Shore hardness of the thermoplastic elastomer is between 50 Shore A and 95 Shore A. ### Claim 6 (depends on 2) The manufacturing method according to claim 2, wherein the step of forming the thermoplastic elastomer comprises: injecting the thermoplastic elastomer at the at least one stress concentration position on the semi-finished product or the final product through an active binding procedure. ### Claim 7 (depends on 2) The manufacturing method according to claim 2, wherein the step of forming the thermoplastic elastomer comprises: forming a binding agent at the at least one stress concentration position of the semi-finished product or the final product, and then injecting the thermoplastic elastomer at the at least one stress concentration position on the semi-finished product or the final product. ### Claim 8 (depends on 2) The manufacturing method according to claim 2, wherein the molding process further comprises forming an opening and a connecting structure corresponding to the opening at the at least one stress concentration position on the semi-finished product; and the thermoplastic elastomer is formed on the connecting structure corresponding to the opening through an injection molding. ### Claim 9 (depends on 2) The manufacturing method according to claim 2, wherein the mechanical machining process further comprises forming an opening and a connecting structure corresponding to the opening at the at least one stress concentration position on the final product; and the thermoplastic elastomer is formed on the connecting structure corresponding to the opening through an injection molding. ### Claim 10 (depends on 9) The manufacturing method according to claim 9, wherein the opening and the connecting structure corresponding to the opening are formed on an external surface of the semi-finished product or the final product, and the thermoplastic elastomer is formed on the external surface of the semi-finished product or the final product. ### Claim 11 (depends on 9) The manufacturing method according to claim 9, wherein the opening and the connecting structure corresponding to the opening are formed inside the semi-finished product or the final product, and the thermoplastic elastomer is formed inside the semi-finished product or the final product. ### Claim 12 (depends on 9) The manufacturing method according to claim 9, wherein the opening and the connecting structure corresponding to the opening are formed on an external surface of and inside the semi-finished product or the final product, and the thermoplastic elastomer is formed on the external surface of and inside the semi-finished product or the final product. ### Claim 13 (depends on 1) The manufacturing method according to claim 1, wherein a material of the thermoplastic resin is selected from a group consisting of polycarbonate (PC), polyamide (PA), polypropylene (PP), acrylonitrile butadiene-styrene (ABS), polyphenyl ether (PPE), thermoplastic urethane (TPU), and polyphenylene sulphide (PPS). ### Claim 14 (depends on 1) The manufacturing method according to claim 1, wherein the glass fiber comprises one or a combination of a flat glass fiber and a round glass fiber. ### Claim 15 (depends on 1) The manufacturing method according to claim 1, wherein the additive is selected from a group consisting of a flame retardant, an antioxidant, a coupling agent, a processing aid, a toughener, a compatilizer, and a mineral filler. ### Claim 16 (depends on 1) The manufacturing method according to claim 1, wherein the mechanical machining process is performed by using a computer numerical control (CNC) machine. ### Claim 17 A portable electronic device, comprising: a casing, having a containing space, wherein the casing comprises: a thermoplastic resin, having an amount between 30 wt % and 70 wt %; a glass fiber, having an amount between 40 wt % and 70 wt %; and a additive, having an amount between 0.1 wt % and 15 wt %; a thermoplastic elastomer, disposed at at least one stress concentration position on the casing; and a display device, disposed in the containing space. ### Claim 18 (depends on 17) The electronic device according to claim 17, wherein the thermoplastic elastomer is selected from a group comprising PA thermoplastic elastomer, polyester thermoplastic elastomer, polyolefin thermoplastic elastomer, and styrene thermoplastic elastomer. ### Claim 19 (depends on 17) The electronic device according to claim 17, wherein a material of the thermoplastic resin of the casing is selected from a group consisting of PC, PA, PP, ABS, PPE, TPU, and PPS. ### Claim 20 (depends on 17) The electronic device according to claim 17, wherein the glass fiber of the casing comprises one or a combination of a flat glass fiber and a round glass fiber. ### Claim 21 (depends on 17) The electronic device according to claim 17, wherein the additive of the casing is selected from a group consisting of a flame retardant, an antioxidant, a coupling agent, a processing aid, a toughener, a compatilizer, and a mineral filler. ### Claim 22 (depends on 17) The electronic device according to claim 17, wherein the thermoplastic elastomer is disposed on an external surface of the casing or inside the casing.