US6784234B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
High performance plastic pallets
Assignee: SABIC Global Technologies BV
•
Filing: 1998-10-07
•
Granted: 2004-08-31
•
Expires: 2018-10-07
Abstract
Abstract The invention relates to plastic pallets that pass the Underwriters Laboratory UL 2335 protocol for pallets wherein said pallets comprises at least one resin selected from the group consisting of:(a) polyphenylene ether resin and blends containing polyphenylene ether resin,(b) polycarbonate resin and blends containing polycarbonate resin,(c) vinyl aromatic graft copolymer resin;(d) polyetherimide resin and blends containing polyetherimide resin, and(e) thermosetting resins.In a preferred embodiment, the plastic pallet has an open deck design. The invention also relates to a method to make pallets that pass the UL 2335 protocol.
Inventors
- 👤 Adeyinka Adedeji
- 👤 Geoffrey Henry Riding
- 👤 Bruce Marshall Torrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:07
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; B; B65; B65D; B65D19/00; B65D19/38; B65D65/00; B65D65/38; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/523; C08L69/00; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00034; B65D2519/00049; B65D2519/00069; B65D2519/00084; B65D2519/00104; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00288; B65D2519/00293; B65D2519/00298; B65D2519/00308; B65D2519/00313; B65D2519/00318; B65D2519/00323; B65D2519/00328; B65D2519/00333; B65D2519/00363; B65D2519/00368; B65D2519/00373; Y; Y10; Y10S; Y10S108/00; Y10S108/901; Y10S108/902
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
62 words
A plastic pallet comprising: a polyphenylene ether resin; a high impact polystyrene; a linear low density polyethylene; at least one flame retardant in an amount sufficient to impart a degree of flame retardancy to the pallet to pass UL 2335 protocol for pallets; and at least one impact modifier, wherein the pallet meets or exceeds Underwriters Laboratory UL 2335 protocol for pallets.
Claim 2
Dependent Claim
62 words
A plastic pallet comprising: a polyphenylene ether resin; a high impact polystyrene; a linear low density polyethylene; at least one flame retardant in an amount sufficient to impart a degree of flame retardancy to the pallet to pass UL 2335 protocol for pallets; and at least one impact modifier, wherein the pallet meets or exceeds Underwriters Laboratory UL 2335 protocol for pallets.
Claim 3
Dependent Claim
14 words
The plastic pallet of claim 1 , wherein the flame retardant is an organophosphate.
Claim 4
Dependent Claim
55 words
The plastic pallet of claim 2 , wherein the organophosphate is an aromatic phosphate compound of the formula where R is the same or different and is alkyl, cycloalkyl, aryl, alkyl substituted aryl, halogen substituted aryl, aryl substituted alkyl, halogen, or a combination of any of the foregoing, provided at least one R is aryl.
Claim 5
Dependent Claim
66 words
The plastic pallet of claim 1 , wherein the pallet comprises: about 30 to about 70 part. of the polyphenylene ether resin, about 20 to about 60 parts of the high impact polystyrene resin, and about 10 to about 30 parts of the organophosphate, wherein all weights are based on 100 parts by weight of the polyphenylene ether resin, high impact polystyrene resin and organophosphate together.
Claim 6
Dependent Claim
17 words
The plastic pallet of claim 1 , wherein the pallet has at least one deck containing holes.
Claim 7
Dependent Claim
83 words
A plastic pallet consisting of: polyphenylene ether resin; high impact polystyrene; at least one flame retardant; at least one additive, wherein the additive is selected from the group consisting of mineral filler, clay, reinforcing agent, glass fiber, glass flakes, glass spheres, plasticizer, stabilizer, colorant, processing aids, and a combination of the foregoing additives; and at least one impact modifier wherein at least one impact modifier is linear low density polyethylene; wherein the pallet meets or exceeds Underwriters Laboratory UT 2335 protocol for pallets.
Claim 8
Dependent Claim
83 words
A plastic pallet consisting of: polyphenylene ether resin; high impact polystyrene; at least one flame retardant; at least one additive, wherein the additive is selected from the group consisting of mineral filler, clay, reinforcing agent, glass fiber, glass flakes, glass spheres, plasticizer, stabilizer, colorant, processing aids, and a combination of the foregoing additives; and at least one impact modifier wherein at least one impact modifier is linear low density polyethylene; wherein the pallet meets or exceeds Underwriters Laboratory UT 2335 protocol for pallets.
Claim 9
Dependent Claim
14 words
The plastic pallet of claim 6 , wherein the flame retardant is an organophosphate.
Claim 10
Dependent Claim
54 words
The plastic pallet of claim 7 wherein the organophosphate is an aromatic phosphate compound of the formula where R is the same or different and is alkyl, cycloalkyl, aryl, alkyl substituted aryl, halogen substituted aryl, aryl substituted alkyl, halogen, or a combination of any of the foregoing, provided at least one R is aryl.
Claim 11
Dependent Claim
75 words
The plastic pallet of claim 7 wherein the polyphenylene ether resin is present amount of about 30 to about 70 parts, the high impact polystyrene resin is present in an amount of about 20 to about 60 parts, and the organophosphate is present in an amount of about 10 to about 30 parts, wherein all weights are based on 100 parts by weight of the polyphenylene ether resin, high impact polystyrene resin and organophosphate together.
Claim 12
Dependent Claim
17 words
The plastic pallet of claim 6 , wherein the pallet has at least one deck containing holes.
Claim 13
Dependent Claim
18 words
The plastic pallet of claim 1 , further comprising zinc oxide, zinc sulfide, or combinations of the foregoing.
Claim 14
Independent Claim
75 words
A method for making a plastic pallet comprising: injection molding a composition comprising polyphenylene ether resin; a high impact polystyrene; at least one flame retardant in an amount necessary to impart a degree of flame retardancy to the pallet to pass the UL 2335 protocol for pallets; at least one impact modifier; and zinc oxide, zinc sulfide, or combinations of the foregoing, wherein the pallet meets or exceeds Underwriters Laboratory UL 2335 protocol for pallets.
Claim 15
Independent Claim
75 words
A method for making a plastic pallet comprising: injection molding a composition comprising polyphenylene ether resin; a high impact polystyrene; at least one flame retardant in an amount necessary to impart a degree of flame retardancy to the pallet to pass the UL 2335 protocol for pallets; at least one impact modifier; and zinc oxide, zinc sulfide, or combinations of the foregoing, wherein the pallet meets or exceeds Underwriters Laboratory UL 2335 protocol for pallets.
Claim 16
Dependent Claim
20 words
The plastic pallet of claim 6 , wherein the additive is zinc oxide, zinc sulfide, or combinations of the foregoing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-08-31 | 2008-03-01 | 2008-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-08-31 | 2012-03-01 | 2012-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-08-31 | 2016-03-01 | 2016-08-31 | $7700.00 | Window Closed / Lapsed |